-->a=1 //real constant a = 1. -->1==1 //boolean ans = T -->'string' //character string ans = string -->z=poly(0,'z') // polynomial with variable 'z' and with one root at zero z = z -->p=1+3*z+4.5*z^2 //polynomial p = 2 1 + 3z + 4.5z -->r=z/p //rational r = z ------------- 2 1 + 3z + 4.5z