Slashdot Mirror
TI vs. Calculator Hobbyists, Again
Deep Thought writes "Texas Instruments, already infamous thanks to the signing key controversy last year, is trying a new trick to lock down its graphing calculators, this time directed toward its newest TI-Nspire line. The TI-Nspires were already the most controlled of TI's various calculator models, and no third-party development of any kind (except for its very limited form of TI-BASIC) was allowed until the release of the independent tool Ndless. Since its release, TI has been determined to prevent the large calculator programming community from using it. Its latest released operating system for the Nspire family (version 2.1) now prevents the calculators from downgrading to OS 1.1, needed to run Ndless. This is TI's second major attack on Ndless, as the company has already demanded that websites posting the required OS 1.1 remove it from public download [PDF, in French], obviously to prevent use of the tool. Once again, TI is preventing calculator hobbyists from running their own software on calculators they bought and paid for."
Go for HP then. (learn RPN!!)
And even then, if I want to hack it, I'd go for a Palm or software in an iPhone/ Android. The processor and raphics in these things runs circles around calculators.
I understand for some occasions (tests, etc) it has to be a calculator, but I doubt it would be allowed to run modified software.
Time for discreet calculators is almost over.
how long until
There is a huge market for graphing calculators because of standardized tests, and those tests have specific requirements on the limits of the calculator's functionality. If you can modify the calculator's firmware, then you can make a run around those rules -- the inspections of calculators rarely involve turning the calculator on, and even if it did, it would be trivial to disguised hacked firmware. These standardized tests rely on a perception of fairness and accuracy, which creates a requirement for standard calculator firmware, which means that a major part of TI's calculator business is created by the un-hackability of their calculators.
Palm trees and 8
Other schools may be different, but at mine, on any test that we took in math class, our teacher would reset our calculators to its factory defaults.
Who the [expletive deleted] would want to mess with a TI?
You're much better off using an HP.
RPN got me into stack architecture, FORTH, Smalltalk and lots of other things.
MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
we weren't allowed used any programmable calculators or calculators which could store info.
Actually, from the sound of it, TI are preventing the hobbyists from distributing software that TI hold the copyright for and the hobbyists do not have permission to distribute - can't really see an issue there.
http://sat.collegeboard.com/register/sat-test-day-checklist#calcPolicy
http://www.actstudent.org/faq/answers/calculator.html
Both the SATs and the ACTs allow graphing calculators. The SATs are actually more lenient prohibiting only calculators with a qwerty keypad, the ACTs ban the TI-89/92(+) Series or calcs because of the CAS (Computerized algebraic solver IIRC)
You are entitled to your own opinions, not your own facts.
I graduated from high school in 1977. The very first time I saw a calculator was in "A" school in the Navy, later on that year. I bought one at the Navy Exchange, can't remember the price. It was a Casio calculator, I can't remember the model number. We used to get drunk and use it to play music on our stereo in the barracks room. Tune an FM radio to an unused frequency, lay the calculator on top, and just press the buttons. The radio would pick up the frequencies, demodulate them, and play them back.
It was fun, but the music was somewhat limited ;)
No matter where you go... there you are.
actually the next iteration in that family, the TI-86 allowed native execution through the ASM(PROGNAME) command.
Snowden and Manning are heroes.
Well, in many of my classes we weren't allowed anything but a pencil for a test. Everything else was provided.
In others, you could bring a calculator, however, since they were multi-step problems, you still had to write everything out. The calculator was really only good for checking that you'd correctly manipulated the numbers.
In a couple you could bring in anything you wanted. You were given 3 hours. The average score was under 45% with the maximum being barely 80%.
You actually had to understand the material and be able to problem solve with what you'd learned.
The cesspool just got a check and balance.
The kid counting his candies is still establishing a bijection between the candies and his fingers whether he knows it or not. Anyway, my point was that thinking "arithmetic is the base operations for math" is a pretty fundamental misunderstanding of what math is for somebody who claims to be a mathematician.
Quidnam Latine loqui modo coepi?
They do. Tons of them. Nspire hackers seem not to realize they're trying to break into the one model that TI wants to keep down for testing security reasons, when they've sold to and supported the homebrew community for years with the rest of their lineup. It's ridiculous.
Chisenbop? So you can count to 99 using two hands? Because bi-quinary arithmetic is so easy. I just count in binary on my fingers. I can count to 31 on each hand, or 1023 if I use both. Plus, binary arithmetic is easier than even decimal arithmetic and it's easy to run a basic full-adder algorithm over both hands and read off the result.