Definition: <m>sum{}{}{b*e^{-a*r^2}-T}</m>

Call: hfBlobby(x,x0,y0,z0,a,b,T);

Parameters:

x - point coordinates

x0,y0,z0 - arrays of blob centers

a - array of a coefficients

b - array of b coefficients

T - threshold value

Test file: blobby.hf