text: mathcad question? how can i calculate in mathcad an equation system. exemple: a*b=2 and a/b=0.5. thanks dunno what mathcad is but... a*b=2 and a/b=0.5  (ab)*(a/b)=2*0.5 a^2=1 a=1 or a=-1  if a=1, b= 2/1= 2 if a=-1, b= 2/-1 = -2  but then again i think i need some explanation on what mathcad is. hehehe sorry to bother