Definition: <m>sum{}{}{f®}</m>
f(x) is analytical convolution for a segment with Cauchy kernel [McCormack and Sherstyuk 1998]

Call: hfConvCurve(x,vect,S,T);

Parameters:

x - point coordinates

vect - coordinate array for vertices of curve

S - array of kernel width control parameters for each line segment

T - threshold

Test file: convcurve.hf