Symbolic CAS Environment
In the CAS environment, all figures and all arithmetic operations are interpreted symbolically .
Some of the over one hundred CAS functions are already available directly from the keyboard. Many other features are found in CAS menu , which is divided into different sections:

Algebra:
Simplify, summarize, multiplying, factoring, dismantling of arithmetic expressions. 
Analysis:
Form of derivatives, integrals, differential operators, limits, sums, Laplace and Fourier transforms. 
Solve:
Solving equations and differential equations. 
Converting:
Apply power and trigonometric principles to calculate expressions. 
Number theory:
Divider, gcd, lcm, prime factorization, prime number, Euclidean algorithm modulo calculation. 
Polynomials:
Zeros, dividers, factorization, gcd, lcm, Euclidean algorithm, Groebner basis, hermite, Lagrange, Laguerre, Legendre, Chebyshev polynomials. 
Graphing:
Functions in one and two variables, implicit functions, direction fields, isolines.