@k8vsy
High end calculators should have a boss key.
#maths #calculators

A friend asked me recently which of my calculators is my favorite. My answer was not that great. In order to answer this properly I would have to provide so many details that it would become difficult to follow. So I wrote a blog post about it that people can read at their own pace.

https://nickapos.oncrete.uk/2025/12/09/which-calculator-is-your-favorite.html


#calculators #math

The TI-34 is a fairly basic scientific #calculator. I’m a big fan because it’s easy to use and not overwhelming.

I was reading the manual and discovered it has two functions:

ipart(x)
fpart(x)

These return the integer and fraction parts of x.

ipart(2.34)=2
fpart(2.34)=.34

Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat

Irreal has an interesting post about prefix versus infix notation. This reminds me of (yet another) religious war that was raging in the 1970s: infix versus postfix in the calculator world, with most calculators using infix but HP using RPN (Reverse Polish Notation, postfix). I was firmly in the latter camp and hence find prefix equally satisfying.

https://irreal.org/blog/?p=13426

#Emacs #Calculators

I found my father's well used electronic calculator, a 3rd generation model for a market of maybe 100.000 pcs (this one is Sr# 85570). No bracket keys, no algebraic order. A former slide rule user wouldn't mind: the X-Y and the M keys were sufficient for rearranging a formula. In 1975, it cost DM200 ($350 today) and, I believe, it was worth it: with this calculator he made all the calculations for the house he built.
#calculators #generations #pastyouth

My latest article about some would use calculators even though we all have access to powerful computers. https://nickapos.oncrete.uk/2025/11/13/what-is-the-deal-with-calculators.html

#calculators #maths #science

Hype for the Future 9A: What to Expect from the YouTube Channels

On Days 7 and 8 of the 284-day “Hype for the Future” series, novaTopFlex has exported numerous mathematical graphs in PNG format as follows (as futoTopFlex):

@alex02 @nixCraft obviously with the "#AI" bs beibg allowed around it's every conspitacy theory about #calculators but worse since calculators still need people to understand what they want to calculate and they won't hallucinate "results" at random.

R47 officially goes on sale, early bird discount available here: https://47calc.com/ #calculators @calculators #rpn #hp

Casio fx-CG100

https://midwest.social/post/38326751

#Development #Utilities
Dev Tools · A super handy collection of utilities for developers https://ilo.im/167pku

_____
#Viewers #Formatters #Calculators #Converters #Generators #Editors #Playgrounds #WebDev #Frontend #Backend

Pssst … It's solving a #Sudoku! 😎 Here's the code, for the curious: https://hp-15c-simulator.de/programs/Sudoku%20Solver.htm #hp15c #hpcalculator #programmablecalculator #retrocomputing #moravia #hp #hewlettpackard #calculator #calculators #pocketcalculator

Ahhh, sucessfully updated the #firmware of my HP-15C CE #calculator! Checksum/Date before: 9090h/2023-01-05. Checksum/Date afterwards: 0A0Ah/2024-06-03. ✅ – HP (Moravia) addressed several bugs (including those in the hidden HP-16C mode) and worked on the keyboard debouncing. – Will test now … #Calculators #PocketCalculator #HewlettPackard #ScientificCalculators #hp15c

Some new #photos from various places over the past few weeks.
#photography #photo #circuitboard #duck #sunset #calculators #casio

Electromechanical Calculating Machines from the 1960's

https://www.mortati.com/glusker/elecmech/index.htm

#HackerNews #Electromechanical #Calculators #History #Vintage #Tech #Innovation

A calculator you would approve of @SmartmanApps ! This might be one of my favourite algebraic #calculators, but then I was always a fan of Sharps. @calculators

Calculator Forensics

https://www.rskey.org/~mwsebastian/miscprj/results.htm

#HackerNews #Calculator #Forensics #Forensics #Technology #DataAnalysis #CyberSecurity #Calculators

i remember what my first computer was, but i can’t remember what my first calculator was. i do remember my favourite calculator that i had in high school, which unfortunately got stolen. i haven’t been able to find one on ebay either.

#VintageComputing #calculators #nostalgia

New instance, same content.

He/him.

Tag soup of work and interests: #SystemsEngineering, #softwareengineering, #devops #programming, #cloud, #motorcycles, #bicycles, #karate, #retrocomputing, #VintageComputing, #calculators, #homelab, #electronics, #history, #economics, #blacksmithing, #polyamory, #HudsonValley, #NYS

I think it could be possible to compile BrainF to the MK #calculators. I don't think I could make a native compiler, but still. It sounds cool.🤔 #esolang