Evaluates an expression in Maxima
y=sym(x)
can be of type int, double, complex, string, sym, polynomial
is of type sym
This function can be overloaded to manage different types.
Take care that you musn't use dollar ($) or semi-colon (;) in your expression.
x=sym('x'),x*x b=[1 2;3 4];B=sym(b) y=sym('diff(sin(x),x)')