File: Tutorial_solve_reuse_decomposition.cpp

package info (click to toggle)
eigen3 3.4.0-5
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 20,492 kB
  • sloc: cpp: 151,572; ansic: 75,396; fortran: 24,137; sh: 971; python: 244; javascript: 205; makefile: 42
file content (13 lines) | stat: -rw-r--r-- 368 bytes parent folder | download | duplicates (20) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
Matrix3f A(3,3);
A << 1,2,3,  4,5,6,  7,8,10;
PartialPivLU<Matrix3f> luOfA(A); // compute LU decomposition of A
Vector3f b;
b << 3,3,4;
Vector3f x;
x = luOfA.solve(b);
cout << "The solution with right-hand side (3,3,4) is:" << endl;
cout << x << endl;
b << 1,1,1;
x = luOfA.solve(b);
cout << "The solution with right-hand side (1,1,1) is:" << endl;
cout << x << endl;