Tikzmark, Arrows (Exponents and Bases)

up vote
5
down vote

favorite

I would like to improve this program. For example, make the arrows more like semi-circles and bring down the words base and exponent. Any suggestions how I can do this from this start/minimal example?

 documentclassarticle
 usepackageamsmath % loaded automatically by beamer
 usepackagetikz
 usetikzlibrarypositioning
 tikzset>=stealth

 newcommandtikzmark[3]tikz[overlay,remember picture,baseline] node 
 [anchor=base,#1](#2) #3;

 begindocument

 beginequation*
 tikzmark[blue]base$b^,,tikzmark[red]exponenta$
 endequation*
 begintikzpicture[overlay, remember picture,node distance =.2cm]
 node[blue] (basedescr) [below right=of base]base;
 draw[,->,thick] (basedescr.west) to [in=315,out=225] (base.south);
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[->,thick] (exponentdescr.west) to [in=65,out=135] (exponent.north);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

add a commentÂ |Â

up vote
5
down vote

favorite

 documentclassarticle
 usepackageamsmath % loaded automatically by beamer
 usepackagetikz
 usetikzlibrarypositioning
 tikzset>=stealth

 newcommandtikzmark[3]tikz[overlay,remember picture,baseline] node 
 [anchor=base,#1](#2) #3;

 begindocument

 beginequation*
 tikzmark[blue]base$b^,,tikzmark[red]exponenta$
 endequation*
 begintikzpicture[overlay, remember picture,node distance =.2cm]
 node[blue] (basedescr) [below right=of base]base;
 draw[,->,thick] (basedescr.west) to [in=315,out=225] (base.south);
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[->,thick] (exponentdescr.west) to [in=65,out=135] (exponent.north);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

add a commentÂ |Â

up vote
5
down vote

favorite

 documentclassarticle
 usepackageamsmath % loaded automatically by beamer
 usepackagetikz
 usetikzlibrarypositioning
 tikzset>=stealth

 newcommandtikzmark[3]tikz[overlay,remember picture,baseline] node 
 [anchor=base,#1](#2) #3;

 begindocument

 beginequation*
 tikzmark[blue]base$b^,,tikzmark[red]exponenta$
 endequation*
 begintikzpicture[overlay, remember picture,node distance =.2cm]
 node[blue] (basedescr) [below right=of base]base;
 draw[,->,thick] (basedescr.west) to [in=315,out=225] (base.south);
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[->,thick] (exponentdescr.west) to [in=65,out=135] (exponent.north);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

 documentclassarticle
 usepackageamsmath % loaded automatically by beamer
 usepackagetikz
 usetikzlibrarypositioning
 tikzset>=stealth

 newcommandtikzmark[3]tikz[overlay,remember picture,baseline] node 
 [anchor=base,#1](#2) #3;

 begindocument

 beginequation*
 tikzmark[blue]base$b^,,tikzmark[red]exponenta$
 endequation*
 begintikzpicture[overlay, remember picture,node distance =.2cm]
 node[blue] (basedescr) [below right=of base]base;
 draw[,->,thick] (basedescr.west) to [in=315,out=225] (base.south);
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[->,thick] (exponentdescr.west) to [in=65,out=135] (exponent.north);
endtikzpicture
enddocument

enter image description here

tikz-pgf tikz-arrows

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

edited Sep 9 at 17:15

marmot

56.8k462124

edited Sep 9 at 17:15

marmot

56.8k462124

edited Sep 9 at 17:15

marmot

56.8k462124

asked Sep 9 at 17:12

MathScholar

453

asked Sep 9 at 17:12

MathScholar

453

asked Sep 9 at 17:12

MathScholar

453

add a commentÂ |Â

2 Answers
2

active

oldest

votes

up vote
5
down vote

In your example, you were nesting tikzpictures since you were putting a tikzpicture in the node of another tikzpicture. This is usually not a good idea. Then I replaced tikzmark, which actually is a well-defined command in the tikzmark package, by a slightly modified version of TorbjÃƒÂ¸rn T.'s tikznode command. As for the arcs, they can be easily drawn with the arc syntax, and personally I like bent arrow heads better.

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

EDIT: Answers to your questions.

You have tikzmark[blue]base$b^,,tikzmark[red]exponenta$. This expands to tikz[...]node[...]...tikz[...]node[...]...;;, which is a TikZ picture inside a TikZ picture, aka nested tikzpicture.

If you use the below right key, say, you can pass to it two distances separated by and, e.g. below right=2pt and 2mm of base will move the thing only 2pt down but 2mm right. If you want it the basedescr node further up, you may either use negative dimensions, or something like right=2mm of base,yshift=-6pt.

Here is the updated code. There are good chances that you will get a much better answers using LoopSpace's great tikzmark library. which has new commands that are superior to the (nevertheless very nice and useful) tikznode command by TorbjÃƒÂ¸rn T..

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,inner sep=0pt]
 node[blue] (basedescr) [below right=2pt and 2mm of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=2pt and 2mm of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

add a commentÂ |Â

up vote
5
down vote

I've just added a version of TorbjÃƒÂ¸rn's tikznode (which is itself a version of the original tikzmark) to the tikzmark library. It needs some testing before being sent to CTAN so I'm taking this opportunity to test it. In the meantime, it is available from github. With it, marmot's solution becomes:

documentclassarticle
%urlhttps://tex.stackexchange.com/q/450135/86
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending,tikzmark

begindocument

beginequation*
 tikzmarknode[blue]baseb^tikzmarknode[red]exponenta
endequation*

begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=.5cm of base]base;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=.5cm of exponent] exponent;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture

enddocument

(I added a little bit of space between the items and their explanations and shortened the arrows as well.)

tikzmark in maths

answered Sep 9 at 20:19

Loop Space

110k28290593

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

add a commentÂ |Â

Your Answer

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "85"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);

);

draft saved

draft discarded

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f450135%2ftikzmark-arrows-exponents-and-bases%23new-answer', 'question_page');

);

Post as a guest

Name

2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
5
down vote

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

EDIT: Answers to your questions.

You have tikzmark[blue]base$b^,,tikzmark[red]exponenta$. This expands to tikz[...]node[...]...tikz[...]node[...]...;;, which is a TikZ picture inside a TikZ picture, aka nested tikzpicture.

If you use the below right key, say, you can pass to it two distances separated by and, e.g. below right=2pt and 2mm of base will move the thing only 2pt down but 2mm right. If you want it the basedescr node further up, you may either use negative dimensions, or something like right=2mm of base,yshift=-6pt.

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,inner sep=0pt]
 node[blue] (basedescr) [below right=2pt and 2mm of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=2pt and 2mm of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

add a commentÂ |Â

up vote
5
down vote

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

EDIT: Answers to your questions.

You have tikzmark[blue]base$b^,,tikzmark[red]exponenta$. This expands to tikz[...]node[...]...tikz[...]node[...]...;;, which is a TikZ picture inside a TikZ picture, aka nested tikzpicture.

If you use the below right key, say, you can pass to it two distances separated by and, e.g. below right=2pt and 2mm of base will move the thing only 2pt down but 2mm right. If you want it the basedescr node further up, you may either use negative dimensions, or something like right=2mm of base,yshift=-6pt.

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,inner sep=0pt]
 node[blue] (basedescr) [below right=2pt and 2mm of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=2pt and 2mm of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

add a commentÂ |Â

up vote
5
down vote

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

EDIT: Answers to your questions.

You have tikzmark[blue]base$b^,,tikzmark[red]exponenta$. This expands to tikz[...]node[...]...tikz[...]node[...]...;;, which is a TikZ picture inside a TikZ picture, aka nested tikzpicture.

If you use the below right key, say, you can pass to it two distances separated by and, e.g. below right=2pt and 2mm of base will move the thing only 2pt down but 2mm right. If you want it the basedescr node further up, you may either use negative dimensions, or something like right=2mm of base,yshift=-6pt.

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,inner sep=0pt]
 node[blue] (basedescr) [below right=2pt and 2mm of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=2pt and 2mm of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

EDIT: Answers to your questions.

You have tikzmark[blue]base$b^,,tikzmark[red]exponenta$. This expands to tikz[...]node[...]...tikz[...]node[...]...;;, which is a TikZ picture inside a TikZ picture, aka nested tikzpicture.

If you use the below right key, say, you can pass to it two distances separated by and, e.g. below right=2pt and 2mm of base will move the thing only 2pt down but 2mm right. If you want it the basedescr node further up, you may either use negative dimensions, or something like right=2mm of base,yshift=-6pt.

documentclassarticle
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending
 newcommandtikznode[3]relax
ifmmode%
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) $#3$;
else
 tikz[remember picture,baseline=(#2.base),inner sep=0pt]node[#1] (#2) #3;%
fi
begindocument

beginequation*
 tikznode[blue]baseb^tikznode[red]exponenta
endequation*
begintikzpicture[overlay, remember picture,inner sep=0pt]
 node[blue] (basedescr) [below right=2pt and 2mm of base]base;
 draw[-Stealth[bend],thick] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=2pt and 2mm of exponent] exponent;
 draw[-Stealth[bend],thick] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture
enddocument

enter image description here

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

edited Sep 9 at 20:18

answered Sep 9 at 17:35

marmot

56.8k462124

answered Sep 9 at 17:35

marmot

56.8k462124

answered Sep 9 at 17:35

marmot

56.8k462124

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

add a commentÂ |Â

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

Hello, how can I bring the word 'exponent' down and the word 'base' up. If I can achieve that then I can finish the rest. Not sure how I nested a tikzpicture node within a node?
â€“Â MathScholar
Sep 9 at 19:54

@MathScholar I addressed your questions in an update of the answer.
â€“Â marmot
Sep 9 at 20:19

add a commentÂ |Â

up vote
5
down vote

documentclassarticle
%urlhttps://tex.stackexchange.com/q/450135/86
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending,tikzmark

begindocument

beginequation*
 tikzmarknode[blue]baseb^tikzmarknode[red]exponenta
endequation*

begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=.5cm of base]base;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=.5cm of exponent] exponent;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture

enddocument

(I added a little bit of space between the items and their explanations and shortened the arrows as well.)

tikzmark in maths

answered Sep 9 at 20:19

Loop Space

110k28290593

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

add a commentÂ |Â

up vote
5
down vote

documentclassarticle
%urlhttps://tex.stackexchange.com/q/450135/86
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending,tikzmark

begindocument

beginequation*
 tikzmarknode[blue]baseb^tikzmarknode[red]exponenta
endequation*

begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=.5cm of base]base;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=.5cm of exponent] exponent;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture

enddocument

(I added a little bit of space between the items and their explanations and shortened the arrows as well.)

tikzmark in maths

answered Sep 9 at 20:19

Loop Space

110k28290593

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

add a commentÂ |Â

up vote
5
down vote

documentclassarticle
%urlhttps://tex.stackexchange.com/q/450135/86
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending,tikzmark

begindocument

beginequation*
 tikzmarknode[blue]baseb^tikzmarknode[red]exponenta
endequation*

begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=.5cm of base]base;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=.5cm of exponent] exponent;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture

enddocument

(I added a little bit of space between the items and their explanations and shortened the arrows as well.)

tikzmark in maths

answered Sep 9 at 20:19

Loop Space

110k28290593

documentclassarticle
%urlhttps://tex.stackexchange.com/q/450135/86
 usepackageamsmath
 usepackagetikz
 usetikzlibrarypositioning,calc,arrows.meta,bending,tikzmark

begindocument

beginequation*
 tikzmarknode[blue]baseb^tikzmarknode[red]exponenta
endequation*

begintikzpicture[overlay, remember picture,node distance =.2cm,inner sep=0pt]
 node[blue] (basedescr) [below right=.5cm of base]base;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(basedescr.west)-(base.south)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in 
 (basedescr.west) arc(n1-45:n1-135:n2) ;
 node[red] (exponentdescr) [above right=.5cm of exponent] exponent;
 draw[-Stealth[bend],thick,shorten >=2pt] let p1=($(exponentdescr.west)-(exponent.north)$),
 n1=ifthenelse(x1>0,atan2(y1,x1),atan2(y1,x1)-180),
 n2=veclen(x1,y1)/sqrt(2)
 in (exponentdescr.west) arc(n1+45:n1+135:n2);
endtikzpicture

enddocument

(I added a little bit of space between the items and their explanations and shortened the arrows as well.)

tikzmark in maths

answered Sep 9 at 20:19

Loop Space

110k28290593

answered Sep 9 at 20:19

Loop Space

110k28290593

answered Sep 9 at 20:19

Loop Space

110k28290593

answered Sep 9 at 20:19

Loop Space

110k28290593

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

add a commentÂ |Â

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

@marmot Thanks. It could do with a bit of testing before sending to CTAN so if you know of any other tests please send them my way.
â€“Â Loop Space
Sep 9 at 20:26

@marmot Not overly sure what's being asked for in that one. And re TorbjÃ¸rn's answer, I did look at the linked questions from his question but he also links many other answers so I need a bit of time to work through to see which ones are from your answers.
â€“Â Loop Space
Sep 9 at 20:48

Yes, I know that the search tools on this site are not great. I just posted a fun answer here to try out your great library. It works great. I'm gonna use it a lot when it is official. (My most common use is in beamer presentations, where I attach callouts to symbols that I want to explain. So I guess I will test it with beamer and the aobs library in the near future.)
â€“Â marmot
Sep 9 at 20:54

@marmot And I just voted for it.
â€“Â Loop Space
Sep 9 at 20:57

Max may have found an issue, or I did something wrong.
â€“Â marmot
2 days ago

add a commentÂ |Â

draft saved

draft discarded

draft saved

draft discarded

Post as a guest

Name

Search This Blog

Iyfjky