(maxima.info)Functions and Variables for impdiff

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64.1 Functions and Variables for impdiff
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 -- 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")'.