Equation step-by-step calc for Android

Equation step-by-step calc app for android description: The equations calculator online (equation solver) contains the section: this calculator return only anwser but return detail step by step solution for a quadratic equations a simplest trigonometric equations a equation with a module (for example x + 1 + x 2 7 20)the supported: supported all math symbols and functions.
For example: sin(x) cos(x) exp(x) tan(x) ctan(x) and other.
Suported complex variables (solve complex equations)solve any equation types such as: linear equations square (quatratic) and cubic equations polynomial equations trigonometric equations exponential equations logarithmic equations equations with complex numbers and otherthe calculator contain several features: numeric solutions for unsolvable equations (such as cos(x) x 3 x + 2) several examples orrect input expression errors (for example you enter x 2 x+1 x 1 0 or e x 2 5)