Input editor does not like my Thread over Circle expression

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1
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I am using Mathematica 11.3.0.0, 64 bit.



Here is my code:



Graphics[Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]]]


Here is code as it looks in a notebook:





On mouseover on , 1, 0:





However, when I evaluate that code I am getting the right output:





Questions



Why, although is , 1, 0 colored in red, does the expression evaluate correctly? Is it a bug? Or maybe I am doing something wrong?






graphics front-end syntax







share|improve this question























  • Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
    – Henrik Schumacher
    4 hours ago






  • 1




    SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
    – kglr
    4 hours ago






  • 2




    Please do not use bug tag unless it is confurmed by support or community.
    – Kuba♦
    4 hours ago














up vote
1
down vote

favorite












I am using Mathematica 11.3.0.0, 64 bit.



Here is my code:



Graphics[Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]]]


Here is code as it looks in a notebook:





On mouseover on , 1, 0:





However, when I evaluate that code I am getting the right output:





Questions



Why, although is , 1, 0 colored in red, does the expression evaluate correctly? Is it a bug? Or maybe I am doing something wrong?






graphics front-end syntax







share|improve this question























  • Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
    – Henrik Schumacher
    4 hours ago






  • 1




    SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
    – kglr
    4 hours ago






  • 2




    Please do not use bug tag unless it is confurmed by support or community.
    – Kuba♦
    4 hours ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











I am using Mathematica 11.3.0.0, 64 bit.



Here is my code:



Graphics[Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]]]


Here is code as it looks in a notebook:





On mouseover on , 1, 0:





However, when I evaluate that code I am getting the right output:





Questions



Why, although is , 1, 0 colored in red, does the expression evaluate correctly? Is it a bug? Or maybe I am doing something wrong?






graphics front-end syntax







share|improve this question















I am using Mathematica 11.3.0.0, 64 bit.



Here is my code:



Graphics[Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]]]


Here is code as it looks in a notebook:





On mouseover on , 1, 0:





However, when I evaluate that code I am getting the right output:





Questions



Why, although is , 1, 0 colored in red, does the expression evaluate correctly? Is it a bug? Or maybe I am doing something wrong?






graphics front-end syntax




graphics front-end syntax






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 16 mins ago









m_goldberg

82.2k869190




82.2k869190










asked 4 hours ago









vasili111

29517




29517











  • Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
    – Henrik Schumacher
    4 hours ago






  • 1




    SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
    – kglr
    4 hours ago






  • 2




    Please do not use bug tag unless it is confurmed by support or community.
    – Kuba♦
    4 hours ago
















  • Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
    – Henrik Schumacher
    4 hours ago






  • 1




    SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
    – kglr
    4 hours ago






  • 2




    Please do not use bug tag unless it is confurmed by support or community.
    – Kuba♦
    4 hours ago















Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
– Henrik Schumacher
4 hours ago




Everything is fine. That's just the syntax highlighter. If it makes you feel better, you can use MapThread[Circle, -1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] instead.
– Henrik Schumacher
4 hours ago




1




1




SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
– kglr
4 hours ago




SyntaxInformation[Circle] gives "ArgumentsPattern" -> Optional[_, _], _., Optional[_, _]. That is, the first argument (if it is used) should be a list of two elements.
– kglr
4 hours ago




2




2




Please do not use bug tag unless it is confurmed by support or community.
– Kuba♦
4 hours ago




Please do not use bug tag unless it is confurmed by support or community.
– Kuba♦
4 hours ago










2 Answers
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2
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SyntaxInformation[Circle]



"ArgumentsPattern" -> Optional[_, _], ., Optional[, _]




That is, the first argument (if it is used) should be a list with two elements. Hence, the excess arguments are colored red by the syntax highlighter.






share|improve this answer



























    up vote
    1
    down vote













    Is Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] a valid input? I hope it is clear it is not.



    Will Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]] evaluate to something reasonable? It will but you don't want a front end to evaluate your code behind the hood to determine this. Consider consequences if that was something less trivial.



    Related:



    Why is this semicolon in red?






    share|improve this answer






















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      2 Answers
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      2 Answers
      2






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      active

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      up vote
      2
      down vote













      SyntaxInformation[Circle]



      "ArgumentsPattern" -> Optional[_, _], ., Optional[, _]




      That is, the first argument (if it is used) should be a list with two elements. Hence, the excess arguments are colored red by the syntax highlighter.






      share|improve this answer
























        up vote
        2
        down vote













        SyntaxInformation[Circle]



        "ArgumentsPattern" -> Optional[_, _], ., Optional[, _]




        That is, the first argument (if it is used) should be a list with two elements. Hence, the excess arguments are colored red by the syntax highlighter.






        share|improve this answer






















          up vote
          2
          down vote










          up vote
          2
          down vote









          SyntaxInformation[Circle]



          "ArgumentsPattern" -> Optional[_, _], ., Optional[, _]




          That is, the first argument (if it is used) should be a list with two elements. Hence, the excess arguments are colored red by the syntax highlighter.






          share|improve this answer












          SyntaxInformation[Circle]



          "ArgumentsPattern" -> Optional[_, _], ., Optional[, _]




          That is, the first argument (if it is used) should be a list with two elements. Hence, the excess arguments are colored red by the syntax highlighter.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 2 hours ago









          kglr

          161k8185385




          161k8185385




















              up vote
              1
              down vote













              Is Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] a valid input? I hope it is clear it is not.



              Will Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]] evaluate to something reasonable? It will but you don't want a front end to evaluate your code behind the hood to determine this. Consider consequences if that was something less trivial.



              Related:



              Why is this semicolon in red?






              share|improve this answer


























                up vote
                1
                down vote













                Is Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] a valid input? I hope it is clear it is not.



                Will Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]] evaluate to something reasonable? It will but you don't want a front end to evaluate your code behind the hood to determine this. Consider consequences if that was something less trivial.



                Related:



                Why is this semicolon in red?






                share|improve this answer
























                  up vote
                  1
                  down vote










                  up vote
                  1
                  down vote









                  Is Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] a valid input? I hope it is clear it is not.



                  Will Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]] evaluate to something reasonable? It will but you don't want a front end to evaluate your code behind the hood to determine this. Consider consequences if that was something less trivial.



                  Related:



                  Why is this semicolon in red?






                  share|improve this answer














                  Is Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5] a valid input? I hope it is clear it is not.



                  Will Thread[Circle[-1, 0, 0, 0, 1, 0, 0.5, 1.0, 0.5]] evaluate to something reasonable? It will but you don't want a front end to evaluate your code behind the hood to determine this. Consider consequences if that was something less trivial.



                  Related:



                  Why is this semicolon in red?







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited 3 hours ago


























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