Mathematics in Architecture 2, student Jelena Nikolov
3^(cos(x)+cos(y)+cos(z))+4*cos(x)*cos(y)*cos(z) x,y,z range from -3 to 3
-(exp(x) + exp(y) + exp(z)) + tan(5*x)+tan(5*y)+tan(5*z) -log(12.36) x,y,z range from -5 to 5