Solving equations for things like heat flow or air pressure is incredibly hard because the math changes depending on the shape of the object. Scientists use "tessellation"—repeating patterns like floor tiles. By reflecting a single shape over and over, they create a symmetry that acts as a mathematical "map," turning messy calculations into clean formulas. This helps engineers build safer structures and helps designers create realistic 3D graphics, using the beauty of patterns to solve real-world puzzles more easily.