Add some more examples for the API documentation.
The only missing examples now are for homogeneous() and hnormalized();
I don't know what they're used for ...
diff --git a/doc/snippets/ColPivHouseholderQR_solve.cpp b/doc/snippets/ColPivHouseholderQR_solve.cpp
new file mode 100644
index 0000000..b7b204a
--- /dev/null
+++ b/doc/snippets/ColPivHouseholderQR_solve.cpp
@@ -0,0 +1,8 @@
+Matrix3f m = Matrix3f::Random();
+Matrix3f y = Matrix3f::Random();
+cout << "Here is the matrix m:" << endl << m << endl;
+cout << "Here is the matrix y:" << endl << y << endl;
+Matrix3f x;
+x = m.colPivHouseholderQr().solve(y);
+assert(y.isApprox(m*x));
+cout << "Here is a solution x to the equation mx=y:" << endl << x << endl;