# Equation and Inequality

Solve an Equation find exact and approximative solutions of an Equation

Solve an Inequality find solutions of an Inequality

Modular inverse Equation Modular multiplicative inverse Online tools.

Two equations system Two linear equations system Online tools.

Three equations system Three linear equations system Online tools.

1st degree Equation First degree Equation Solver.

Quadratic Equation Quadratic equation Solver

Cubic Equation Cubic Equation Solver.

Other calculators

Algebra

Fractions

Numbers

Trigonometry

Combinatorics

Functions

Matrix and vector

Sequences

Complexifyd Numbers

Statistics

Polynomial

Special functions

Data Processing