Oops
Inverse Tangent in degrees is still broken.
Calculator nostalgia
Works great! My son loves it!
Tan -1 does not work
Inverse tangent doesn’t work in degrees
Response from developer
I fixed this bug, please try again!
HP15C User Reviews
Is HP15C Safe?
Not enough ratings yet to assess HP15C.
Is HP15C Legit?
HP15C: Scientific Calculator appears legitimate, with a few gaps. AppsHunter Legitimacy Score for HP15C is 78/100.
Based on 78 of 100 points across 7 verification signals from App Store and developer data.
