Piecewise Function Error

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
1
down vote

favorite
1












I want to plot such a figure



enter image description here



I used command Plot[Piecewise[1,x<0,x,x=0,1,x>0],x,-3,3].



But it shows wrong results.










share|improve this question























  • Lookup = vs ==.
    – Kuba♦
    1 hour ago










  • @Kuba, Okay, but we can not not see the line to point (0,0)
    – ABCDEMMM
    1 hour ago










  • Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
    – Kuba♦
    1 hour ago










  • @Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
    – ABCDEMMM
    1 hour ago














up vote
1
down vote

favorite
1












I want to plot such a figure



enter image description here



I used command Plot[Piecewise[1,x<0,x,x=0,1,x>0],x,-3,3].



But it shows wrong results.










share|improve this question























  • Lookup = vs ==.
    – Kuba♦
    1 hour ago










  • @Kuba, Okay, but we can not not see the line to point (0,0)
    – ABCDEMMM
    1 hour ago










  • Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
    – Kuba♦
    1 hour ago










  • @Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
    – ABCDEMMM
    1 hour ago












up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I want to plot such a figure



enter image description here



I used command Plot[Piecewise[1,x<0,x,x=0,1,x>0],x,-3,3].



But it shows wrong results.










share|improve this question















I want to plot such a figure



enter image description here



I used command Plot[Piecewise[1,x<0,x,x=0,1,x>0],x,-3,3].



But it shows wrong results.







plotting






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 34 mins ago

























asked 1 hour ago









ABCDEMMM

1367




1367











  • Lookup = vs ==.
    – Kuba♦
    1 hour ago










  • @Kuba, Okay, but we can not not see the line to point (0,0)
    – ABCDEMMM
    1 hour ago










  • Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
    – Kuba♦
    1 hour ago










  • @Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
    – ABCDEMMM
    1 hour ago
















  • Lookup = vs ==.
    – Kuba♦
    1 hour ago










  • @Kuba, Okay, but we can not not see the line to point (0,0)
    – ABCDEMMM
    1 hour ago










  • Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
    – Kuba♦
    1 hour ago










  • @Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
    – ABCDEMMM
    1 hour ago















Lookup = vs ==.
– Kuba♦
1 hour ago




Lookup = vs ==.
– Kuba♦
1 hour ago












@Kuba, Okay, but we can not not see the line to point (0,0)
– ABCDEMMM
1 hour ago




@Kuba, Okay, but we can not not see the line to point (0,0)
– ABCDEMMM
1 hour ago












Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
– Kuba♦
1 hour ago




Correct but that was solved by kglr now. Plot is not likely to exactly "hit" x==0 so that is why it looks like a straight line.
– Kuba♦
1 hour ago












@Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
– ABCDEMMM
1 hour ago




@Kuba, also, Thanks a lot, Before only do it in PPTX.... .:)
– ABCDEMMM
1 hour ago










2 Answers
2






active

oldest

votes

















up vote
2
down vote



accepted










Update:



ParametricPlot[ x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
AxesLabel -> Style["x", 16], Style["y", 16],
AxesStyle -> Arrowheads[0.04],
Ticks -> None, ExclusionsStyle -> Automatic,
PlotStyle -> Directive[Thick, Black],
AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5,
ImageSize -> Large ]


enter image description here



Original answer:



ParametricPlot[x, 0, x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
Axes -> False, PlotStyle -> Thick]


enter image description here



Alternatively, you can Plot two Piecewise functions with the option ExclusionsStyle:



Plot[Piecewise[0, x < 0, 2, x > 0], 
Piecewise[2, x < 0, 0, x > 0], x, -3, 3, Axes -> False,
ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic]


enter image description here






share|improve this answer






















  • where is error in my code?
    – ABCDEMMM
    1 hour ago










  • why we can not see line to (0,0) using my method??
    – ABCDEMMM
    1 hour ago










  • @ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
    – kglr
    1 hour ago










  • how can we add -> x, ->y; symbols??
    – ABCDEMMM
    42 mins ago










  • @ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
    – kglr
    35 mins ago

















up vote
1
down vote













Edit:



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 3], 
Line[-3, 3, 3, 3], AbsoluteThickness[1.5],
Arrow[-5, 0, 5, 0], Arrow[0, 3, 0, 4],
Text[Style["x", 16, FontFamily -> "Times New Roman"], 4.5, 0.5]]


enter image description here



Here is alternatives:



Show[Plot[UnitStep[x], x, -3, 3, 
PlotStyle -> Black, AbsoluteThickness@3, PlotRange -> 0, 1],
Plot[UnitStep[-x], x, -3, 3,
PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


Or



Show[Plot[0, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3, 
PlotRange -> 0, 1],
Plot[1, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


enter image description here



Or using Graphics



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 2], 
Line[-3, 0, 3, 0], Line[-3, 2, 3, 2]]


enter image description here






share|improve this answer






















  • you answer is also very helpful, thank you!
    – ABCDEMMM
    13 mins ago










Your Answer




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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
2
down vote



accepted










Update:



ParametricPlot[ x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
AxesLabel -> Style["x", 16], Style["y", 16],
AxesStyle -> Arrowheads[0.04],
Ticks -> None, ExclusionsStyle -> Automatic,
PlotStyle -> Directive[Thick, Black],
AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5,
ImageSize -> Large ]


enter image description here



Original answer:



ParametricPlot[x, 0, x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
Axes -> False, PlotStyle -> Thick]


enter image description here



Alternatively, you can Plot two Piecewise functions with the option ExclusionsStyle:



Plot[Piecewise[0, x < 0, 2, x > 0], 
Piecewise[2, x < 0, 0, x > 0], x, -3, 3, Axes -> False,
ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic]


enter image description here






share|improve this answer






















  • where is error in my code?
    – ABCDEMMM
    1 hour ago










  • why we can not see line to (0,0) using my method??
    – ABCDEMMM
    1 hour ago










  • @ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
    – kglr
    1 hour ago










  • how can we add -> x, ->y; symbols??
    – ABCDEMMM
    42 mins ago










  • @ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
    – kglr
    35 mins ago














up vote
2
down vote



accepted










Update:



ParametricPlot[ x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
AxesLabel -> Style["x", 16], Style["y", 16],
AxesStyle -> Arrowheads[0.04],
Ticks -> None, ExclusionsStyle -> Automatic,
PlotStyle -> Directive[Thick, Black],
AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5,
ImageSize -> Large ]


enter image description here



Original answer:



ParametricPlot[x, 0, x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
Axes -> False, PlotStyle -> Thick]


enter image description here



Alternatively, you can Plot two Piecewise functions with the option ExclusionsStyle:



Plot[Piecewise[0, x < 0, 2, x > 0], 
Piecewise[2, x < 0, 0, x > 0], x, -3, 3, Axes -> False,
ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic]


enter image description here






share|improve this answer






















  • where is error in my code?
    – ABCDEMMM
    1 hour ago










  • why we can not see line to (0,0) using my method??
    – ABCDEMMM
    1 hour ago










  • @ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
    – kglr
    1 hour ago










  • how can we add -> x, ->y; symbols??
    – ABCDEMMM
    42 mins ago










  • @ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
    – kglr
    35 mins ago












up vote
2
down vote



accepted







up vote
2
down vote



accepted






Update:



ParametricPlot[ x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
AxesLabel -> Style["x", 16], Style["y", 16],
AxesStyle -> Arrowheads[0.04],
Ticks -> None, ExclusionsStyle -> Automatic,
PlotStyle -> Directive[Thick, Black],
AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5,
ImageSize -> Large ]


enter image description here



Original answer:



ParametricPlot[x, 0, x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
Axes -> False, PlotStyle -> Thick]


enter image description here



Alternatively, you can Plot two Piecewise functions with the option ExclusionsStyle:



Plot[Piecewise[0, x < 0, 2, x > 0], 
Piecewise[2, x < 0, 0, x > 0], x, -3, 3, Axes -> False,
ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic]


enter image description here






share|improve this answer














Update:



ParametricPlot[ x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
AxesLabel -> Style["x", 16], Style["y", 16],
AxesStyle -> Arrowheads[0.04],
Ticks -> None, ExclusionsStyle -> Automatic,
PlotStyle -> Directive[Thick, Black],
AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5,
ImageSize -> Large ]


enter image description here



Original answer:



ParametricPlot[x, 0, x, 2, 0, 2 Rescale[x, -3, 3], x, -3, 3, 
Axes -> False, PlotStyle -> Thick]


enter image description here



Alternatively, you can Plot two Piecewise functions with the option ExclusionsStyle:



Plot[Piecewise[0, x < 0, 2, x > 0], 
Piecewise[2, x < 0, 0, x > 0], x, -3, 3, Axes -> False,
ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic]


enter image description here







share|improve this answer














share|improve this answer



share|improve this answer








edited 6 mins ago

























answered 1 hour ago









kglr

167k8188392




167k8188392











  • where is error in my code?
    – ABCDEMMM
    1 hour ago










  • why we can not see line to (0,0) using my method??
    – ABCDEMMM
    1 hour ago










  • @ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
    – kglr
    1 hour ago










  • how can we add -> x, ->y; symbols??
    – ABCDEMMM
    42 mins ago










  • @ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
    – kglr
    35 mins ago
















  • where is error in my code?
    – ABCDEMMM
    1 hour ago










  • why we can not see line to (0,0) using my method??
    – ABCDEMMM
    1 hour ago










  • @ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
    – kglr
    1 hour ago










  • how can we add -> x, ->y; symbols??
    – ABCDEMMM
    42 mins ago










  • @ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
    – kglr
    35 mins ago















where is error in my code?
– ABCDEMMM
1 hour ago




where is error in my code?
– ABCDEMMM
1 hour ago












why we can not see line to (0,0) using my method??
– ABCDEMMM
1 hour ago




why we can not see line to (0,0) using my method??
– ABCDEMMM
1 hour ago












@ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
– kglr
1 hour ago




@ABCDEMMM, (1) you should use x ==0 in the middle piece as Kuba commented (2) even then, it gives a single horizontal line at y==1 with a gap at x==0 .
– kglr
1 hour ago












how can we add -> x, ->y; symbols??
– ABCDEMMM
42 mins ago




how can we add -> x, ->y; symbols??
– ABCDEMMM
42 mins ago












@ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
– kglr
35 mins ago




@ABCDEMMM, you mean Plot[Piecewise[0, x < 0, 2, x > 0], Piecewise[2, x < 0, 0, x > 0], x, -3, 3, AxesLabel -> "x", "y", AxesStyle -> Arrowheads[0.04], Ticks -> None, ExclusionsStyle -> Automatic, PlotStyle -> Black, AspectRatio -> Automatic, PlotRangePadding -> .2, .5, 0., .5]?
– kglr
35 mins ago










up vote
1
down vote













Edit:



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 3], 
Line[-3, 3, 3, 3], AbsoluteThickness[1.5],
Arrow[-5, 0, 5, 0], Arrow[0, 3, 0, 4],
Text[Style["x", 16, FontFamily -> "Times New Roman"], 4.5, 0.5]]


enter image description here



Here is alternatives:



Show[Plot[UnitStep[x], x, -3, 3, 
PlotStyle -> Black, AbsoluteThickness@3, PlotRange -> 0, 1],
Plot[UnitStep[-x], x, -3, 3,
PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


Or



Show[Plot[0, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3, 
PlotRange -> 0, 1],
Plot[1, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


enter image description here



Or using Graphics



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 2], 
Line[-3, 0, 3, 0], Line[-3, 2, 3, 2]]


enter image description here






share|improve this answer






















  • you answer is also very helpful, thank you!
    – ABCDEMMM
    13 mins ago














up vote
1
down vote













Edit:



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 3], 
Line[-3, 3, 3, 3], AbsoluteThickness[1.5],
Arrow[-5, 0, 5, 0], Arrow[0, 3, 0, 4],
Text[Style["x", 16, FontFamily -> "Times New Roman"], 4.5, 0.5]]


enter image description here



Here is alternatives:



Show[Plot[UnitStep[x], x, -3, 3, 
PlotStyle -> Black, AbsoluteThickness@3, PlotRange -> 0, 1],
Plot[UnitStep[-x], x, -3, 3,
PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


Or



Show[Plot[0, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3, 
PlotRange -> 0, 1],
Plot[1, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


enter image description here



Or using Graphics



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 2], 
Line[-3, 0, 3, 0], Line[-3, 2, 3, 2]]


enter image description here






share|improve this answer






















  • you answer is also very helpful, thank you!
    – ABCDEMMM
    13 mins ago












up vote
1
down vote










up vote
1
down vote









Edit:



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 3], 
Line[-3, 3, 3, 3], AbsoluteThickness[1.5],
Arrow[-5, 0, 5, 0], Arrow[0, 3, 0, 4],
Text[Style["x", 16, FontFamily -> "Times New Roman"], 4.5, 0.5]]


enter image description here



Here is alternatives:



Show[Plot[UnitStep[x], x, -3, 3, 
PlotStyle -> Black, AbsoluteThickness@3, PlotRange -> 0, 1],
Plot[UnitStep[-x], x, -3, 3,
PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


Or



Show[Plot[0, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3, 
PlotRange -> 0, 1],
Plot[1, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


enter image description here



Or using Graphics



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 2], 
Line[-3, 0, 3, 0], Line[-3, 2, 3, 2]]


enter image description here






share|improve this answer














Edit:



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 3], 
Line[-3, 3, 3, 3], AbsoluteThickness[1.5],
Arrow[-5, 0, 5, 0], Arrow[0, 3, 0, 4],
Text[Style["x", 16, FontFamily -> "Times New Roman"], 4.5, 0.5]]


enter image description here



Here is alternatives:



Show[Plot[UnitStep[x], x, -3, 3, 
PlotStyle -> Black, AbsoluteThickness@3, PlotRange -> 0, 1],
Plot[UnitStep[-x], x, -3, 3,
PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


Or



Show[Plot[0, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3, 
PlotRange -> 0, 1],
Plot[1, x, -3, 3, PlotStyle -> Black, AbsoluteThickness@3],
AxesStyle -> AbsoluteThickness@3, Ticks -> None, PlotRange -> 0, 1]


enter image description here



Or using Graphics



Graphics[Black, AbsoluteThickness@3, Line[0, 0, 0, 2], 
Line[-3, 0, 3, 0], Line[-3, 2, 3, 2]]


enter image description here







share|improve this answer














share|improve this answer



share|improve this answer








edited 12 mins ago

























answered 49 mins ago









Okkes Dulgerci

3,3261616




3,3261616











  • you answer is also very helpful, thank you!
    – ABCDEMMM
    13 mins ago
















  • you answer is also very helpful, thank you!
    – ABCDEMMM
    13 mins ago















you answer is also very helpful, thank you!
– ABCDEMMM
13 mins ago




you answer is also very helpful, thank you!
– ABCDEMMM
13 mins ago

















 

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