[cstex] vnorene cykly v metapostu

[plisna at yahoo.com]

dobry den, potreboval bych pomoci s nasledujicim kodem. potrebuji
prolozit body z promenne f hladkou krivkou, path f konstuuji pomoci
vnejsiho cyklu (promenna i), pricemz jeho body potrebuji spocitat pres
vnitrni cyklus (promenna j). nicmene pri prekladu dojde k chybe, log
prekladu je uveden pod kodem. dovede nekdo znaly poradit, kde je
chyba? predem dekuji, zdravi LK

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

pair F;
  F:=(-3pi, 0);

path f;

f:=F
  for i=-540 step 10 until 540:

    numeric w;
    w := 1;
    for j=1 step 1 until 10:
      w := w + j;
    endfor;

    ..(i*pi/180, j)

  endfor;

  draw f;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

log prekladu:


This is MetaPost, Version 0.993 (Web2C 7.5.6) (mem=mpost 2007.6.18)  9
FEB 2008 08:47
 **preview.mp
 (preview.mp
 ! Extra tokens will be flushed.

                    numeric
  numeric
                    .w;w:=1;for.j=1step1until10:w:=w+j;endfor;..
((EXPR0)*pi/1...
 l.44   endfor
              ;