Help for a "Surface and Flux integrals" program

[salvomic]

(11-06-2017 05:56 PM)Arno K Wrote:  I had tried that with a local u statement at the beginning, then the program refuses to work.
Arno

It's strange...
here it works with

Code:

BEGIN
local gg, u, v;
purge(u);
purge(v);
...

I'm trying now in HC and in VC with

Code:


sfint([x,y,z],[u*COS(v), u*SIN(v), u^2],[0,1],[0, 2π])

and it returns -(½)*π here.