Equations and Systems Solver

It solves second and third degree equations showing complex results as well when needed.
It solves systems of two or three equations in two or three variables.
It solves systems with the method called "Gaussian elimination" (maximum 30 equations in 30 variables).
It interpolates the data using the Newton's Interpolation method with divided differences.
It's possible to make a linear regression of the data using the least squares method.
It solves derivatives and integrals.
It solves equations using Newton's method (tangents).