gets the number of variables and constraints involved
[n,m] = cdimen()
number of variables
number of constraints
[n,m]=cdimen returns the number of variables in n and number of constraints in m.
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