Optimized for desktop, tablets and cell phones

Online calculator for calculating general analytics ...

Formulas and functions for online calculation of complex numbers ...

Value of an annuity, interest rate, installment, depreciation, amortization ...

Calculator and formulas of 3x3 and 4x4 matrices ...

Distances, angles, segments, 2- and 3-dimensional figures...

Current, voltage, power, resistance, conductance ...

Bits and Bytes...

Sigmoid, Logit...

Calculator and formulas of 2x2, 3x3 and 4x4 vectors ...