|Type:||Programmable scientific calculator|
|Batteries:||LR 44 x 2|
The Casio FX-501P and Casio FX-502P were identical calculators except
for the number of available program memory. The Casio FX-502P is
the non-alphanumeric predecessor of the Casio FX-602P.
I've never actually used this calculator. I got it by exchanging
it with a Casio FX-601P I owned with someone who preferred
alphanumeric above memory.
This calculator (as do many other Casio scientific calculators) uses one and the same key for both the constant π as well as exponents. This works as follows. When you first enter digits, the "EXP"-key will enable you to enter the numbers exponent, otherwise it will enter the constant π.
©2023 Ernst Mulder