#ticalc — Public Fediverse posts

RE: https://hachyderm.io/@itworldcup/115949253823078683

Es musste sein.
#Rust für komplizierte Sachen. Wenn man mit Speicher jongliert und Sicherheit will. Aber es ist auch einfach ein tolles Gefühl, so nah am System zu sein wie in #C.
Und noch eine Sache, die für mich relevant ist: #LLVM unterstützt nur Prozessoren, deren Wortbreite eine Zweierpotenz ist. Ich schreibe gerne Programme für den #eZ80, der mit 24-bit-Wörtern einfach von modernen Sprachen nicht unterstützt wird.
Vielleicht kann man hier ja dafür werben.
#ticalc #swift

#adventOfCode day 10 in #LuaLang and #Mathematica

https://gitlab.cs.washington.edu/fidelp/advent-of-code-2025/-/blob/main/10.lua

• PC - 487 ms
• Raspberry Pi 4: a few seconds
• #ti92 Plus: N/A

Ok, finally all caught up and looking forward to some sleep and Day 12!

After a night and day in math land confusing myself with row echelon matrices and intersecting N-spaces, I remembered that I have a Raspberry Pi that for some reason has free preinstalled Mathematica.

So my Lua program code-gens a Mathematica program, which then runs on the Pi to solve Part B!

This generated code is checked in if you want to look at it - it's several thousand lines of simultaneous equations being solved with constraints applied: https://gitlab.cs.washington.edu/fidelp/advent-of-code-2025/-/blob/main/10.m

Given all that, it's pleasantly fast. Mathematica over VNC on wifi is pretty laggy but the actual execution couldn't have taken more than a second or two!

(Yes, I did attempt to solve the equations on the TI-92+ #ticalc, as it has a very capable computer algebra system, but I couldn't figure out how to apply all the necessary constraints -- maybe later.)

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

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

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

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

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

Do I know anyone who does #ti92 or #ti89 TI calculator homebrew development? The gcc toolchain is giving me some very specific problems when creating libraries for use under PreOs, and maybe someone else has already encountered and moved past this. #retrocomputing #ticalc

Wrote a very stupid program for my TI-84 as i'm trying to get comfortable writing from the calculator keyboard to find collisions between PRNG generated numbers.
#ti84 #tibasic #ticalc #prng

Hacking an Obsolete Yet Modern Calculator - The gold standard for graphing calculators, at least in the US, are the Texas Inst... - https://hackaday.com/2021/11/01/hacking-an-obsolete-yet-modern-calculator/ #texasinstruments #retrocomputing #computerhacks #calculator #ticalc.org #zshell #retro #ti-84 #z80 #ti