Math_Numerical_RootFinding_Common | --Math_Numerical_RootFinding_Newtonraphson
Math_Numerical_RootFinding_Newtonraphson Math_Numerical_RootFinding_Newtonraphson( [array $options = null])
float|PEAR_Error compute( callback $fxFunction, callback $dfxFunction, float $xR)
void infoCompute( )