Inf, -Inf

These values are plus and minus infinity. Inf is a very large positive number.  –Inf is a very large in absolute value negative number.  They may be used in an assignment as follows (specval.gms)

z$y=x/y;

if(y =0,z=inf);

z$y=-x/y;

if(y =0,z=-inf);

through such mechanisms one can reflect cases where infinite results arise.