Complex sentence: For example, the direct sum\\ mathbf\\ oplus\\ mathbf, where\\ mathbf is real coordinate space, the direct sum\\ mathbf\\ oplus\\ mathbf is the Cartesian plane,\\ mathbf ^ 2.
Split into simpler sentences: For example, the direct sum\\ mathbf\\ oplus\\ mathbf, where\\ mathbf is real coordinate space. Then\\ mathbf\\ oplus\\ mathbf is the Cartesian plane,\\ mathbf ^ 2.