4 ms·
If anyone else was curious about the final image and the `x÷` button: http://www.vintagecalculators.com/html/sharp_el-8.html http://www.vintagecalculators.com/h
by carb 2y ago
If anyone else was curious about the final image and the `x÷` button: http://www.vintagecalculators.com/html/sharp_el-8.html http://www.vintagecalculators.com/html/sharp_el-8.html
----
> The keyboard on this calculator has the number of keys reduced to the minimum by the use of only three function keys, including a combined "x÷" key.
> Here, pressing "x÷" gives the multiplication function if "+=" is subsequently pressed to give the answer, and gives the division function if "-=" is subsequently pressed to give the answer, so:
> 4 x÷ 2 += gives the answer 8.
> 4 x÷ 2 -= gives the answer 2.
- thih9 2y agoThank you! This looks surprisingly intuitive, perhaps even comfortable, especially when muscle memory kicks in. Then again… I guess 4 += 1 += gives the answer 5. What would be the result of 4 += 1 -= ? Edit: the answer is “3”, elaborated on the linked page: http://www.vintagecalculators.com/html/calculator_keyboard_layouts.html#AddingMachine http://www.vintagecalculators.com/html/calculator_keyboard_l...
- humptybumpty 2y agoBut what about: 4 -= 1 += 4 -= 1 -= I’m guessing 3 and 3?
- thih9 2y agoMy guess is different; these calculators did support negative numbers; I’d say: 4 –= 1 += gives: -3 4 –= 1 –= gives: -5 Manual for a similar model: https://www.oldcalculatormuseum.com/m-sharpqt8d.pdf https://www.oldcalculatormuseum.com/m-sharpqt8d.pdf