Most programming languages (like current C implementations) use the
IEEE format for numbers, which includes +/- infinity and NaN (not a
number. sqrt(-1) is NaN for example), though real language support to
deal with these circumstances is often poor.
Curious fact: there are also 2 zeros! +0 and -0.
I seem to recall zero being infinitessimal rather than an absolute nothing,
a virtual reciprocal of infinity. and so small it matters not whether + or -
Unsurprising, I suppose, that I see no font containing the symbol.
Actually I don't think Windows ships with any font that does NOT
include it. Arial, Times New Roman, Verdana, Microsoft Sans Serif,
Courier New all have it (Unicode point U+221E).
Ah, found them, never fished in the TTF's before, had onle explored the 256
char' fonts.
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