## 67 Package impdiff ¶

### 67.1 Functions and Variables for impdiff ¶

Function: implicit_derivative (f,indvarlist,orderlist,depvar) ¶

  This subroutine computes implicit derivatives of multivariable functions. f is an array function, the indexes are the derivative degree in the indvarlist order; indvarlist is the independent variable list; orderlist is the order desired; and depvar is the dependent variable.

  To use this function write first `load("impdiff")`.

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