[Gmsh] Understanding of variables

[G. D. McBain]

> I don't understand how to deal with the value of variables : I have 3 variables defining mesh size (a= 1, b=2, c=10). Mesh is OK and I want to export this mesh with the values of variables in the file name. I tried :
> Save StrCat("model", a, "_", b, "_", c, ".inp"); returns a syntax error.
> How can I extract the value of each variable to create a string ?

Try Sprintf rather than StrCat.

a = 1; b = 2; c = 10;
Printf(Sprintf("model%g_%g_%g.inp", a, b, c));

See:

   http://gmsh.info/doc/texinfo/gmsh.html#Character-expressions

Note the use of %g despite the variables appearing to have integral values.
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