CASIO fx-7

Description

Brand: CASIO
Model: fx-7
Type: Scientific calculator
Picture: CASIO fx-7
Batteries: AA x 2
Lifetime: Introduced: 1982
Terminated: unknown
Notes: The CASIO fx-7 is a scientific calculator with all the basic scientific operations: roots and powers, trigonometric functions and logarithms. It also does percentages and has memory.

The "MODE"-key is for setting the angular mode. The current angular mode is shown using one of the symbols D, R or G at the far right of the display.

It has auto power-off. Memory is not retained when the calculator is in the auto power-off state. To switch it back on press the "AC"-key.

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 exponent, otherwise it will enter the constant π.