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-Notes on the Computer Modern parameters
-
-Dimensions are mostly in units of 1/36pt, because I originally worked
-on graph paper with 36 pixels per point (in 1977). This experience made
-me familiar with such units, so I later decided to make METAFONT produce
-proofmode output at the same scale.
-
-The basic fonts cmr5--cmr17 scale proportionately in most vertical
-dimensions (e.g., the x_height in 5pt is half that in 10pt), but
-horizontally the smaller fonts are more extended and have relatively
-heavier weight (especially in hairlines).
-
-The slanted fonts cmsl8--cmsl12 are identical to their unslanted
-counterparts except that they have slant=1/6.
-
-Font cmdunh10 is the same as cmr10 except that body_height, asc_height,
-cap_height, and fig_height have been drastically increased.
-
-The bold fonts cmbx5--cmbx12 have similar vertical dimensions to the ordinary
-roman (except that the x_height is a bit taller and bar_height is lower);
-they use bolder pen strokes, of course, and they are rather more extended.
-Font cmb10 is like cmbx10 except not extended (i.e., 1em=10pt in cmb10,
-but 1em=11.5pt in cmbx10); it also has slightly shorter cap serifs. Font
-cmbxsl10 is like cmbx10 but slanted.
-
-The typewriter fonts cmtt8--cmtt12 have the same x_heights as their
-roman counterparts, but they have shorter ascenders and longer descenders.
-Their math_axis is based on ascenders only. The stroke weights are
-almost all identical to the corresponding roman stem weight.
-Font cmsltt10 is a slanted version of cmtt10; cmvtt10 is non-monospaced.
-
-The sans serif fonts cmss8--cmss17 are analogous to cmr8--cmr17; they have
-slanted counterparts with slant of 12 degrees. A few other isolated sans
-serif fonts appear in the standard set, as demonstrations of how other
-varieties could be made: There's a demibold condensed version, cmssdc10,
-and a bold extended version, cmssbx10. (The title pages in The TeXbook use
-cmssdc10 at 40pt and a magnified version of cmssbx10 called cminch; to
-save font storage space, cminch is restricted to digits and uppercase
-letters only.) Finally, there's a pair of fonts called cmssq8 and cmssqi8;
-these are in a rather different style (extended, with short ascenders
-and descenders), used for the end-of-chapter quotations in The TeXbook.
-
-The font cmfib8 is another `demonstration' of parameters; it's a serifed
-font whose proportions are based on Fibonacci numbers. Also, the font
-cmff10 is a weird concoction of little use except for testing.
-
-The text italic fonts cmti7--cmti12 have parameters like their roman
-cousins, except that they are more condensed and slightly lighter.
-The math italic fonts cmmi5--cmmi12 are not condensed and not
-quite as light.
-
-Four special italic fonts are provided as demonstrations of further
-possibilities: cmbxti10 is a bold extended text italic; cmmib10 is
-a bold math italic; cmit10 is an italic typewriter font; cmu10 is
-an unslanted italic with the same stem weights as cmr10.
-
-The math symbol fonts, cmsy5--cmsy10, have the same parameters
-as the corresponding math italic; these fonts also have special
-parameters of their own. There's a bold math symbols font for
-demonstration purposes: cmbsy10.
-
-The math extension font, cmex10, has the parameters of cmr10.
-
-The extended ASCII font, cmtex10, has the parameters of cmtt10, except
-that the slant is positive (for a few characters that will be slanted).
-
-And finally there are two caps-and-small-caps fonts, cmcsc10 (to match cmr10)
-and cmtcsc10 (to match cmtt10). These fonts are unusual in having two
-sets of parameters, one for the upper uppercase and one for the lower uppercase.