2023 HHC "How well do you know your HP 41 functions?"

[Ajaja]

(10-11-2023 02:40 AM)Gene Wrote:  10) E. INT is the only operation listed without an inverse. LastX does not count as an inverse. For example, the sine of 25 is approx 0.4226. You can enter 0.4226 and press shift SIN to get approximately 25. The INT of 3.14 is 3. You cannot however, key 3 and get 3.14 since there is no direct inverse of INT.

sin(123456) is hard to inverse without LastX too