Florian Maurin
0af925cb01
libeigen/eigen!2652 Closes #998, #2142, #301, #1822, #1959, #805, #462, #308, #2146, #1335, #634, #81, and #46
23 lines
540 B
C++
23 lines
540 B
C++
// SPDX-FileCopyrightText: The Eigen Authors
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
#include <Eigen/Dense>
|
|
#include <cmath>
|
|
#include <iostream>
|
|
|
|
struct GreaterAbs {
|
|
double operator()(double a, double b) const {
|
|
using std::abs;
|
|
return abs(a) < abs(b) ? b : a;
|
|
}
|
|
};
|
|
|
|
int main() {
|
|
Eigen::MatrixXd m(2, 3);
|
|
m << -2, 1, 4, 3, -5, 2;
|
|
|
|
std::cout << "matrix:\n" << m << "\n\n";
|
|
std::cout << "largest absolute value: " << m.redux(GreaterAbs()) << "\n";
|
|
std::cout << "column-wise:\n" << m.colwise().redux(GreaterAbs()) << "\n";
|
|
}
|