AMS Euler is a upright cursive typeface, commissioned by the American Mathematical Society and designed and created by Hermann Zapf with the assistance of Donald Knuth. It has been trying to emulate a mathematician's style of handwriting mathematical entities on a blackboard, which is upright rather than italic.
The AMS Euler typeface is named after Leonhard Euler.
First implemented in METAFONT, AMS Euler was first used in the book Concrete Mathematics , co-authored by Knuth, which was dedicated to Euler. This volume also saw the debut of Knuth's Concrete Roman font, designed to complement AMS Euler. The typeface is now also available in other formats, including PostScript Type 1 and TrueType.
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