Function absValue

kernel/linear_algebra/linearAlgebra.cc:725–731

Returns a new number which is the absolute value of the coefficient of the given polynomial. * * The method assumes that the coefficient has imaginary part zero. */

 *
 * The method assumes that the coefficient has imaginary part zero. */
number absValue(poly p)
{
  if (p == NULL) return nInit(0);
  number result = nCopy(pGetCoeff(p));
  if (!nGreaterZero(result)) result = nInpNeg(result);
  return result;
}

bool subMatrix(const matrix aMat, const int rowIndex1, const int rowIndex2,
               const int colIndex1, const int colIndex2, matrix &subMat)