invert()

void M2::ARingCC::invert ( ElementType & res, const ElementType & a ) const

inline

Definition at line 234 of file aring-CC.hpp.

  {
    ElementType result;
    if (fabs(a.re) >= fabs(a.im))
      {
        double p = a.im / a.re;
        double denom = a.re + p * a.im;
        result.re = 1.0 / denom;
        result.im = -p / denom;
      }
    else
      {
        double p = a.re / a.im;
        double denom = a.im + p * a.re;
        result.re = p / denom;
        result.im = -1.0 / denom;
      }
    set(res, result);
  }

References p, result(), and set().

Referenced by power().