Online calculator simulators?

[pauln]

(07-10-2022 06:18 AM)jonmoore Wrote:  

(07-10-2022 03:28 AM)pauln Wrote:  This is a great observation. I have always found this test a little bit arbitrary and dubious, for the exact same reasons.

(It is a good test though to differentiate emulators from simulators.)

1 sin cos tan arctan arccos arcsin

in radians would have been a much better test.

[...] BTW if the test is performed with radians, all decent calculators resolve to 1 without any roundoff error. [...]

That's funny! To say the truth I had only checked on the TI-57 and TI-59. From that point of view they are not decent calculators : ) (they don't resolve to 1 exactly). But I see other calculators resolve to exactly 1.

Definitely not a great test. (Maybe 1.111..1 sin cos tan arctan arccos arcsin in radians?)

Actually the original test (9 sin cos tan arctan arccos arcsin in degrees) is great to verify that 2 different calculators use the exact same algorithm (but not necessarily to test the quality of these algorithms).