Debian packages similar to mathematica or mathlab ?

[Bob Alexander <bob@ngi.it>]

Any OS alternatives ?

For now I only need some basic stuff to quickly check arithmetic and 
algebraic computations ... very simple stuff like:

(17^2-5^3)/(17+3*2^3)*((18^2/9^2+(13-4*3^2:6)^2-2*(8^2-2*3*7)+1))/5

TIA
Bob