They also built a serial adapter that connects to a dial-up modem:
https://youtu.be/epFX8K0dhdY
And an IRC client: https://youtu.be/afkrucsMMrc
This Website is hosted on an Casio fx-9750GII Calculator
121–130 of 265 posts
Re: This Website is hosted on an Casio fx-9750GII Calculator
#122Earlier quoted context omitted.
I'm a few years out of high school, but during my time anything other than physical calculators were explicitly banned due to the potential for kids to be accessing the internet during exams. I even had a friend who won one of TI's higher end calculators at a math competition, only for him to be banned to use it during exams because of its higher capabilities. Perhaps things have changed in the post-Covid world.
In my high school physics and math classes, we were allowed to run any programs that we programmed ourselves. This was on Ti-84s so BASIC not Python. Given the context, it made a lot of sense.
Yeah about the same here. I wrote some programs to handle quadratic formulas. Impressed the Algebra teacher who then let me take AP Computer Science so I can learn to program in Java...which I promptly forgot after graduating HS.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#123Re: This Website is hosted on an Casio fx-9750GII Calculator
#124Last year I bought I used TI for my daughter who needed it for school. I got her the oldest version, the one which takes AAA batteries and communicates with the outside world through a serial link. A project like this brings to mind the possibility of stuffing a Raspberry Pi Zero in the battery compartment, hooking it up to the school WiFi, using a terminal app on the calculator to communicate with the Pi and in that…
The ESP-01 is smaller, cheaper, less battery heavy, and already speaks serial so it wouldn't be hard to integrate it, just for the WiFi... And at a quick look there's a bunch of TIArduino stuff out there in the wild it should be easy.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#125Earlier quoted context omitted.
I'm a few years out of high school, but during my time anything other than physical calculators were explicitly banned due to the potential for kids to be accessing the internet during exams. I even had a friend who won one of TI's higher end calculators at a math competition, only for him to be banned to use it during exams because of its higher capabilities. Perhaps things have changed in the post-Covid world.
In my high school physics and math classes, we were allowed to run any programs that we programmed ourselves. This was on Ti-84s so BASIC not Python. Given the context, it made a lot of sense.
When I was in HS, at the exams we were expected to use our TI-84+ calculators, but we were not allowed to have any programs of our own, so they made us clear the programs before they handed out the problems.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#126Last year I bought I used TI for my daughter who needed it for school. I got her the oldest version, the one which takes AAA batteries and communicates with the outside world through a serial link. A project like this brings to mind the possibility of stuffing a Raspberry Pi Zero in the battery compartment, hooking it up to the school WiFi, using a terminal app on the calculator to communicate with the Pi and in that…
Reminds me of when I was in high school. I found a terminal emulator for my HP48G, built a serial cable to connect it to my 2400 baud modem. I was able to use it to check my email in physics class. Of course I was only able to do that once; the modem was three or four times the size of the calculator with lots of blinkenlights on it, and trailing a phone cable half way across the classroom isn’t very subtle.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#127reason why we link bonuses to documentation weighted for responsibilities for business continuity. but we make junior devs break the back of the writing (long form not code comments) precisely to develop understanding and appreciation for the scope of inadvertent misunderstanding and errors. we paid overtime rates for sick days used to produce documentation until it was rather taken advantage of by post commit blow out hangovers leveraging the difficulty with getting really hard problems out of one's head following a real impasse - this encouraged a post mortem culture of celebration of heroic failures of increasingly marginal prowess, although I would have liked to keep the practice with a little bit more review or limit.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#128Notice: this is written in fairly nicely-written C, not ASM with demoscene level micro-optimizations, like you might expect. Goes to show how much you can get out of hardware just by writing code sensibly in a native language (and native libs/tools, of course).
C isn't in my mind close to the metal but potentially lets you be more sympathetic to the metal. Thanks for your drawing attention to this, I'm looking forward to reading.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#129Well Casios are better than TI calculators. My current favorite calculator is Casio ES-115 PLUS2 https://www.amazon.com/Casio-fx-115ESPLS2-Advanced-Scientifi... I like it because when you enter sin(pi/12) you get (sqrt(3)-1)/(2*sqrt(2)) in mathematical notation, which is really nice for a $16 calculator. Here I'm going to hurt TI: If you need a TI-84 or TI-89 for school, the place to get them cheap is shopgoodwill.co…
Checking in with a TI-30X Pro and get the equivalent (sqrt(6)-sqrt(2))/4 also in mathematical notation. All of my work is saved when I turn the calculator back on. Plus I can just set a flag for imaginary mode without a separate complex app so everything works the same in both modes. The screen is higher resolution and the multi-tap entry is pretty darn sweet.
Re: This Website is hosted on an Casio fx-9750GII Calculator
#130Earlier quoted context omitted.
I really enjoy the HP calculators. RPN is much closer to how my brain perceives the equations.
Unfortunately they seem to have abandoned it on their newer models: I recently got a HP Prime and no RPN in sight afaict ( https://www.hp.com/us-en/campaigns/prime-graphing-calculator... ) .
Sure there is. Go to Settings and move down to Entry. Hit Enter and you get your choice of Textbook, Algebraic, or RPN. Go down to RPN, press Enter and then Esc.
Presto, RPN.