# Partial Derivative Calculator

A step by step partial derivatives calculator for functions in two variables. You may first want to review the
rules of differentiation of functions and the formulas for derivatives.

## Use of the Partial Derivative Calculator

1 - Enter and edit function $f(x,y)$ in two variables, x and y, and click "Enter Function".The five operators used are: + (plus) , - (minus), / (division) , ^ (power) and * (multiplication). (example: f(x,y) = x/y - 2*x + 2*x*y).(more notes on editing functions are located below)

2 - Click "Calculate Derivative" to obain $\dfrac{\partial f}{ \partial x}$ and $\dfrac{\partial f}{ \partial y}$ in two steps each. The first step using the rules of derivatives and the second is the simplified form of the derivative.

Notes: In editing functions, use the following:

1 - The five operators used are: + (plus) , - (minus), / (division) , ^ (power) and * (multiplication). (example: f(x,y) = x/y - 2*x + 2*x*y)

2 - The function square root function is written as (sqrt). (example: sqrt(x^2-1)

3 - The exponential function is written as (exp). (Example: exp(x+2) )

4 - The ln function is written as (log). (Example: log(2x+3) )

5 - The absolute value function is not supported directly but you can transform an absolute value function into a square root function as follows: | u | = sqrt(u^2)

## More References and Links to Derivatives

Partial DerivativesTables of Formulas for Derivatives

Rules of Differentiation of Functions in Calculus