I'm developing a small equation editor, using the Win32 API and the MATH table, which has been recently incorporated by MS into its OpenType file for the Cambria Math font. I received the MATH table specs from MS and in general I think I understand how to extract any information from it. My problem is to understand the concept behind several constants defined in this table. I contacted MS about this and they told that these terms are very common in LaTex. Since I'm not familiar with this language, I would appreciate if someone could help me understand the meaning of the following constants :
MathLeading White space to be left between math formulas to ensure proper line spacing.
AxisHeight Axis height of the font.
SuperscriptShiftUpCramp Standard shift of superscripts relative to the base, in cramped style.
StackTopShiftUp Standard shift up applied to the top element of a stack.
StackGapMin Minimum gap between (ink) bottom of the top element of a stack, and the (ink) top of the bottom element.