Represents a phantom math object () that affects the layout of its child element without necessarily displaying it. A phantom can hide its base expression while preserving its width, height, or depth to align formulas or reserve space. Visibility and geometry behavior are controlled by properties such as Show, ZeroWid, ZeroAsc, ZeroDesc, and Transp....>) override Takes specified function using this instance as the...) override Takes specified function using this instance as the...