What's up with my TI calculator!!!

plug in n, i, pv… etc and keep getting different answers than the book! tried formatting it but still gives me a different answer (a consistent different answer not like random answers every time)… did anyone face this problem b4!

Beg mode?

Hit BGN (it is done by hitting 2nd - “PMT”)…it should say END. If it doesn’t hit 2nd - Enter and it will set it correctly. Also hit P/Y (it is doen by hitting 2nd - “I/Y”)…it should say 1.0. If it doesn’t hit the 1 key and then hit Enter. Now try the examples.

clear the memory

I know about the END mode, but haven’t tried the I/Y… thanks

kiss it

If all else fails buy a new calculator, but keep it in the package. Set the new calculator down near your failing TI while you are studying. The TI will get the picture. I do this with my putter. Works all the time.