Terminated: unknown
These scientific functions classify it as almost scientific calculator in my opinion:
- An an function to calculate powers of numbers.
- The physical constant π.
Other noteworthy non-scientific functions are:
- The MU·◿% percent change function: "Used to perform a mark up or mark down calculation and to calculate the rate of increase, cost or selling price" (according to its manual).
- The %5/4 percent round off function: "Used to perform percentage calculation and round off its result at 3rd decimal place" according to its manual).
When set to "A" (addition) it is very easy to tabulate currency values with two decimals. For instance to enter "2,42" just type "242". When using an, × or ÷ the behaviour is temporarily changed to make it possible to, for instance, easily multiply the last addition result with a multiplier. It is also easy to undo a mistyped value whilst tabulating. Pressing C·CE once will undo the last entry.
The ↕ key swaps the operands of a calculation, commonly indicated as x↔y on other calculators.
This calculator shows its indicators in the rightmost digit of the display. Its decimal point is lit when there is a non-zero value in the calculators’ memory. It is also used to indicate negative numbers. A "C" symbol is used to indicate an error. When the last result was negative this will result in an "E" being displayed.
Multiplications and divisions are automatically repeated by repeatedly pressing the = key.
There is an article about this calculator on the National Museum of American History website here (link validated 2025-12-06).
It might be worth to also take a look at the SHARP "ELSI MATE" EL-8018 which has a similar case.