Derivative calculator

Function

Variable

..........

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How to use

  • Put the function in the first line
  • Put the variable you want to derivate in at the second line
  • Click on the "Calculate" button and see the derivative!

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Valid functions and variables

  • Variables can be an upper or lower case letter (excluding "e"), and can have subscript using "_", ex.: x_i
  • To use unary "-", use "~" or it will show an error message
  • You can use the constants e, pi and gr (golden ratio)
  • Power was implemented as a^b and square root was implemeted as sqrt(a)
  • log and ln were implemented too
  • Every trigonometric function were implemented (reciprocals, inverses and hiperbolics too)
  • sum(a, b, x_i) = summation of x_i's, with i going from a to b (a and b can be almost anything) (Obs.: don't try to derivate it in x_i!)
  • Factorial is not implemented
  • You may have to do some algebraic manipulations to simplify the result :)