returns the unconstrained problem dimension
N = udimen()
number of variables involved in a the problem
udimen returns how many variables are involved in the problem currently linked with Scilab. In the case where the only possible constraints are bound constraints. N is the size of X.
Based on CUTEr authored by
Nicholas I.M. Gould - n.gould@rl.ac.uk - RAL
Dominique Orban - orban@ece.northwestern.edu - Northwestern
Philippe L. Toint - Philippe.Toint@fundp.ac.be - FUNDP
see http://hsl.rl.ac.uk/cuter-www