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  • oh, golly, you too? look at a few fonts. not all "A"s are flat on top, and sometimes that point exceeds the designed cap height. i cant think of any (roman) fonts that have ah "X" or "H" with excrescences at the top. Commented Oct 28, 2015 at 12:26
  • @barbarabeeton In several fonts (CM included), the height of A and of T or X are the same, even if the A glyph slightly overshoots.
    – egreg
    Commented Oct 28, 2015 at 12:32
  • What does the character between \font and A do in this construct? I'm having trouble making Google yield good results on it.
    – Bananguin
    Commented May 2, 2016 at 17:49
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    @user1129682 <backquote>A is TeX lingo for an “alphabetical constant”: it denotes the ASCII code of the letter A. \fontcharht must be followed by a font specifier (\font stands for the current one) and by a number denoting the slot in the font. In this case, the slot corresponding to an A.
    – egreg
    Commented May 2, 2016 at 17:59