The Museum of HP Calculators
HP Forum Archive 18
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Message #1 Posted by designnut on 5 June 2008, 8:27 p.m.
I read of the accuracy test performed using 9 sin cos tan arc tan arc cos arc sin in sequence. In the 50g in the degrees mode it shows 8.999999864267. I wondered how it would perform in the radians mode so I used Pi/20 (same 9 degrees) repeated the test and divided the results into the original angle and multiplied by 9 to get a comparable number (9). It showed 8.999999999995
It seems the algorithms are more compatible with the radian mode. Sam
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