transpose

mat2 m2 = mat2( 1.0f );
assert( m2.transpose.data == mat2( 1.0f ).data );

assert( m2.transpose.data  ==  [[ 1.0f, 0.0f ],
								[ 0.0f, 1.0f ]] );
assert( m2.data == mat2.identity.data );

mat3 m3 = mat3( 1.1f, 1.2f, 1.3f,
				2.1f, 2.2f, 2.3f,
				3.1f, 3.2f, 3.3f );
m3 = m3.transpose;
assert( m3.data == [[ 1.1f, 2.1f, 3.1f ],
					[ 1.2f, 2.2f, 3.2f ],
					[ 1.3f, 2.3f, 3.3f ]] );

mat4 m4 = mat4( 2.0f );
assert( m4.transpose.data == mat4( 2.0f ).data );