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#include <Imath/ImathMatrix.h>
#include <Imath/ImathMatrixAlgo.h>
#include <cassert>
void
matrix22_example()
{
Imath::M22f M (Imath::UNINITIALIZED); // uninitialized
M.makeIdentity();
assert (M[0][0] == 1.0f);
assert (M[0][1] == 0.0f);
Imath::M22f Minv = M.inverse();
Imath::M22f R;
assert (R == Imath::identity22f);
R.rotate (M_PI/4);
M = R * M;
Imath::V2f v2 (1.0f, 0.0f);
Imath::V2f r2 = v2 * M;
assert (r2.equalWithAbsError (Imath::V2f (0.707107f, 0.707107f), 1e-6f));
}
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