eigen/doc/snippets/Tutorial_solve_reuse_decomposition.cpp

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;
Rewrite tutorial section on solving linear systems 2009-08-23 03:12:47 +08:00			`Matrix3f A(3,3);`
			`A << 1,2,3, 4,5,6, 7,8,10;`
big huge changes, so i dont remember everything. * renaming, e.g. LU ---> FullPivLU * split tests framework: more robust, e.g. dont generate empty tests if a number is skipped * make all remaining tests use that splitting, as needed. * Fix 4x4 inversion (see stable branch) * Transform::inverse() and geo_transform test : adapt to new inverse() API, it was also trying to instantiate inverse() for 3x4 matrices. * CMakeLists: more robust regexp to parse the version number * misc fixes in unit tests 2009-10-29 06:19:29 +08:00			`PartialPivLU<Matrix3f> luOfA(A); // compute LU decomposition of A`
Rewrite tutorial section on solving linear systems 2009-08-23 03:12:47 +08:00			`Vector3f b;`
			`b << 3,3,4;`
			`Vector3f x;`
sync the documentation examples 2009-10-27 02:37:43 +08:00			`x = luOfA.solve(b);`
Rewrite tutorial section on solving linear systems 2009-08-23 03:12:47 +08:00			`cout << "The solution with right-hand side (3,3,4) is:" << endl;`
			`cout << x << endl;`
			`b << 1,1,1;`
sync the documentation examples 2009-10-27 02:37:43 +08:00			`x = luOfA.solve(b);`
Rewrite tutorial section on solving linear systems 2009-08-23 03:12:47 +08:00			`cout << "The solution with right-hand side (1,1,1) is:" << endl;`
			`cout << x << endl;`