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#lang pollen
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◊(define-meta title "math symbols")
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◊hanging-topic[(topic-from-metas metas)]{Use real characters, not alphabetic susbstitutes}
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If you need ◊em{math symbols} infrequently — some light addition and subtraction, the occasional negative number — you can get by without special symbols. Use the plus sign ◊glyph{+} and equals sign ◊glyph{=} as usual. Use the en dash as a minus sign ◊glyph{–} (see ◊xref{hyphens and dashes}).
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If you need to do multiplication or beyond, insert real math symbols by hand.
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