solenoid inductance #calculator
on 02026-08-11#NREL’s “PVWatts” #calculator for #solar #energy investment returns
on 02026-01-13#NumPad #calculator #documentation
on 02025-07-27"Soulver" is the #calculator app that inspired #NumPad.
on 02025-07-27"MathPad" is the #calculator app (free download for old Macs) that inspired #Soulver and #NumPad.
on 02025-07-27#pendulum #physics #calculator
on 02024-02-21#HP #RPN #calculator #history, with the HP 9100A
on 02023-12-06notes and #calculator on #mechanical Belleville springs (though Engineers Edge apparently requires you to sign up to use their calculators now)
on 02022-02-10TI #Z80 #calculator programming and jailbreaks; arTIfice defeated the TI-84+ lockdown; Numworks stopped maintaining their open-source calculator firmware
on 02021-10-08Ken Shirriff explains how four-phase logic #hardware worked on the Sharp EL-8 #calculator. Also, gorgeous 8-segment and 9-segment VFD displays!
on 02021-01-13Axe Parser recommended by lwb on the orange website: “If they have a TI-83 or TI-84 graphic calculator, you can't beat Axe Parser! It's as simple as the BASIC language that comes with the calculator, but it compiles to assembly so it's lightning fast. And you can write and build the entire game from your calculator. I spent hundreds of hours making games with Axe back in high school.” #Z80 #programming-for-everyone #calculator #PDF
on 02020-01-01A relative to absolute humidity converter, which depends on the air temperature and barometric pressure. Licensed cc-by-sa, as are most of the 455 calculators on the site, though much of the other content is in Russian. #calculator
on 02016-10-17#JS #emulation of the crappy Sinclair Radionics #calculator “Sinclair Scientific”, which ran on the same TMS0800 four-function calculator chip #hardware as the TI Datamath.
on 02016-10-03#emulation of the Datamath #calculator (running on the 4-bit TMS0800 CPU #hardware with a ROM of 320 11-bit words) from 1974 in #JS, with live disassembly from the patent (US 3,934,233), and a DHTML register display.
on 02016-10-03