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  • curprev 18:2018:20, 1 October 2022Equinox talk contribs 442 bytes +316 #* '''2015''', Maria Zack, ‎Elaine Landry, ''Research in History and Philosophy of Mathematics'' (page 45) #*: The key insight was to replace the law of cosines by a law of versed sines or a law of '''suversed''' sines, where the '''suversed''' sine of an angle is the versed sine of the supplement of that angle. undo

29 January 2018