# Derivative

Creates a new function representing the derivative of the expression/variable that was passed into it.

1 `\derivative[<action>]{<variable>}{<expression>}{<free_variable>}`

**action**,**variable**and**expression**are identical to the input of a`\function`

command.**free_variable**defines the free variable in the given**expression**.$$f_1 = 4x^3 + 2 \cdot 3x^2$$ is the output of

123456`\derivative{f_1}{x^4 + 2*x^3}{x}`

`% and is equal to the following`

`\function{f}{x^4 + 2*x^3}`

`\derivative{f_1}{f}{x}`