Hi,

I am implementing an arithmetic system for only Boolean variables based on GiNaC. May I know how I can

modify the behaviour of symbolic multiplication such that: x*x == x (instead of x*x==x^2), and the multiplication of numeric remains unchanged (eg 3*4 == 12) ?

Using subs(x^2 == x) works but I found it is slow if my expressions are huge and there are many symbols.

Thank you very much.

Best regards,

argama