void polcurve (r, theta, dim, sym) POLPLT.C Level 3
 
float *r The values of the radius vector.
float *theta The values of the angle in radians.
unsigned dim The dimension of the r and theta arrays.
int sym = 0 To draw the curve only.
= > 0 To draw the curve and symbols every sym points.
= < 0 To draw symbols only every sym points.
 
polcurve() draws a curve corresponding to the vector r, on a polar grid. If r is logarithmic, the previous call to 
polgrid() will provide cropping for the curve at the minimum circle.