Method integral

src/PolyMath.cpp:182–184

}

double Polynomial2D::integral(const Eigen::MatrixXd& coefficients, const double& x_in, const double& y_in, const int& axis = -1) {
    return this->evaluate(this->integrateCoeffs(coefficients, axis, 1), x_in, y_in);
}

/// Uses the Brent solver to find the roots of p(x_in,y_in)-z_in
/// @param res Poly2DResidual object to calculate residuals and derivatives