metapost “ missing `,' has been inserted.” compilation error












0















I'm quite new to this language and can't figure out the error in following code. Any help would be appreciated !



verbatimtex
documentclass{article}
usepackage[T1]{fontenc}
usepackage{mathptmx}
begin{document}
etex;


input labelauto;
beginfig(1)

u := 10mm;
v := 0.8u;

for i=1 upto 5:
pickup pensquare scaled 0.6pt;
draw (-v*i,-0.1u)..(-v*i,0.1u)
withcolor(0.5, 0.5, 0.5);
draw (v*i,-0.1u)..(v*i,0.1u)
withcolor(0.5, 0.5, 0.5);


label.bot(textext("$" & (decimal (-v*i)) & "$"), (-v*i, -0.2u))
withcolor(0.5, 0.5, 0.5);
label.bot(textext("$" & (decimal (v*i)) & "$"), (v*i, -0.2u))
withcolor(0.5, 0.5, 0.5);
endfor;
endfig;

end


gives following error:



! Missing `,' has been inserted.
<to be read again>
(
<for(1)> ...hcolor(0.5,0.5,0.5);label.bot(textext(
"$"&(decimal(-v*(EXPR0)))&...
l.59 endfor
;









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    0















    I'm quite new to this language and can't figure out the error in following code. Any help would be appreciated !



    verbatimtex
    documentclass{article}
    usepackage[T1]{fontenc}
    usepackage{mathptmx}
    begin{document}
    etex;


    input labelauto;
    beginfig(1)

    u := 10mm;
    v := 0.8u;

    for i=1 upto 5:
    pickup pensquare scaled 0.6pt;
    draw (-v*i,-0.1u)..(-v*i,0.1u)
    withcolor(0.5, 0.5, 0.5);
    draw (v*i,-0.1u)..(v*i,0.1u)
    withcolor(0.5, 0.5, 0.5);


    label.bot(textext("$" & (decimal (-v*i)) & "$"), (-v*i, -0.2u))
    withcolor(0.5, 0.5, 0.5);
    label.bot(textext("$" & (decimal (v*i)) & "$"), (v*i, -0.2u))
    withcolor(0.5, 0.5, 0.5);
    endfor;
    endfig;

    end


    gives following error:



    ! Missing `,' has been inserted.
    <to be read again>
    (
    <for(1)> ...hcolor(0.5,0.5,0.5);label.bot(textext(
    "$"&(decimal(-v*(EXPR0)))&...
    l.59 endfor
    ;









    share|improve this question









    New contributor




    flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      I'm quite new to this language and can't figure out the error in following code. Any help would be appreciated !



      verbatimtex
      documentclass{article}
      usepackage[T1]{fontenc}
      usepackage{mathptmx}
      begin{document}
      etex;


      input labelauto;
      beginfig(1)

      u := 10mm;
      v := 0.8u;

      for i=1 upto 5:
      pickup pensquare scaled 0.6pt;
      draw (-v*i,-0.1u)..(-v*i,0.1u)
      withcolor(0.5, 0.5, 0.5);
      draw (v*i,-0.1u)..(v*i,0.1u)
      withcolor(0.5, 0.5, 0.5);


      label.bot(textext("$" & (decimal (-v*i)) & "$"), (-v*i, -0.2u))
      withcolor(0.5, 0.5, 0.5);
      label.bot(textext("$" & (decimal (v*i)) & "$"), (v*i, -0.2u))
      withcolor(0.5, 0.5, 0.5);
      endfor;
      endfig;

      end


      gives following error:



      ! Missing `,' has been inserted.
      <to be read again>
      (
      <for(1)> ...hcolor(0.5,0.5,0.5);label.bot(textext(
      "$"&(decimal(-v*(EXPR0)))&...
      l.59 endfor
      ;









      share|improve this question









      New contributor




      flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I'm quite new to this language and can't figure out the error in following code. Any help would be appreciated !



      verbatimtex
      documentclass{article}
      usepackage[T1]{fontenc}
      usepackage{mathptmx}
      begin{document}
      etex;


      input labelauto;
      beginfig(1)

      u := 10mm;
      v := 0.8u;

      for i=1 upto 5:
      pickup pensquare scaled 0.6pt;
      draw (-v*i,-0.1u)..(-v*i,0.1u)
      withcolor(0.5, 0.5, 0.5);
      draw (v*i,-0.1u)..(v*i,0.1u)
      withcolor(0.5, 0.5, 0.5);


      label.bot(textext("$" & (decimal (-v*i)) & "$"), (-v*i, -0.2u))
      withcolor(0.5, 0.5, 0.5);
      label.bot(textext("$" & (decimal (v*i)) & "$"), (v*i, -0.2u))
      withcolor(0.5, 0.5, 0.5);
      endfor;
      endfig;

      end


      gives following error:



      ! Missing `,' has been inserted.
      <to be read again>
      (
      <for(1)> ...hcolor(0.5,0.5,0.5);label.bot(textext(
      "$"&(decimal(-v*(EXPR0)))&...
      l.59 endfor
      ;






      metapost compilation-error metafun






      share|improve this question









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      flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 3 mins ago







      flowian













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      asked 15 mins ago









      flowianflowian

      83




      83




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      New contributor





      flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      flowian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















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