Hi,

I was reading the manual for Maple 13 and playing with some commands.

There is an equation: sin(x)=cos(x) and you can solve it by the solve command.

If you want all solutions, you just put there AllSolutions attribute and you get

(1/4)*Pi+Pi*_Z1~

I wonder why there is a tilde (~) behind "_Z1", because each integer satisfies

the equation (there is no need for an assumption).

Does anyone know what kind of algorithm Maple (e.g. version 12) uses for generating random samples by the means of Sample command

in the Statistics package?

Thanks a lot for every comment.