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**To**:*bkph@ai.mit.edu, math-font-discuss@cogs.susx.ac.uk***Subject**:**meta NEW MATH****From**:*lcs@suntopo.matups.fr (Laurent Siebenmann)***Date**: Mon, 11 Oct 93 03:19:12 +0100

meta NEW MATH Dear Berthold, To encourage you toward making a "meta" or "multimaster" version of Lucida New Math that makes the 10, 7, 5 script proportioning of Knuth possible, I want to mention that there is a distinct goal that one can thereby hope to realise for the first time with TeX. Thus far, I believe, every TeX math system suffers from the following evident deformity: in a math expression such as $x_N$, the subscripted capital letter is bigger than the small letter to which it is subscripted. Because of the relatively great x-height of the Lucida Bright typeface it turns out that the N would for the first time become smaller than the x: --- the subscripted N height would be 7 units while that of the x would be greater at 7.3 units. In Computer Modern the subscripted N height is 7 units less than the x-height 6.3 units. Un short, a meta version of Lucida New Math would have a distinct qualitive advantage to boast of. Yours Laurent S PS: I said in contemplating more restricted size changes for scripts: > Then there was then a problem that in $x_N$, the N is > about as big as the x This is understatement for MathTimes. In fact, the N is noticeably bigger! With the 10pt, 7.6pt and 6.0pt scheme you recommend for MathTimes, the height ratio is (x-height):(_N-height) = 6.8 : 7.6, a bit worse than the 6.3 : 7.0 we saw above for CM.

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