How do I make variable names case-sensitive? I checked the settings, googled, looked around in calculator menus. I store something in "D" and it prints "d" and the value. This also extends to formulas involving "D" - it prints them as "d". Obviously this sucks and should work the way I want it to.

It does suck and it should work the way you want it to, but to my understanding, it's designed that way so that students don't accidentally mix variables 'X' and 'x' together and get confused why their equations don't work. As far as I know, there's no way around that, but I'll certainly cede the floor to some more experienced TI-Nspire users.

Hello community. I know it's been over 13 years since this was posted, but I have the same issue and was wondering if there's a workaround in the meantime.

I bought the TI-Nspire CX II-T CAS and I suck at math and need it for my Macroeconomics course. I am learning math for the first time, so I'm still learning Algebra and Functions as I progress in my Macro course.

As someone learning this for the first time, I find it extremely annoying to not be able to name variables as I wish – which would be as they are displayed in my Macro book or slides, where A ≠ a and D ≠ d.

This forces me to name variables differently and just creates confusion and mess.

Is there ANY way to have case-sensitive variables? Or is there any other calculators that can do this?

I need a calculator that can solve equations for specific variables for me, and that can display functions visually and allows me to easily shift around lines and so on. The TI-Nspire CX II-T CAS is extremely clumsy for that.

It would also be amazing if there was a way to name functions whatever you want to name them. And not being forced to name them "f1(x)", "f2(x)", etc. I just want to use my formulas exactly as they are in my Macro book and Macro slides.

Thank you so much for any advice! It would help me a lot.

Kind regards
Frustratio

Nope that's not a thing (not sure it is on any ti graphing calc). But hey at least variables can have multiple letters lol.
If you program in Python however (which the CX II can), you could do that.

As for the graphing stuff, there are lots of key shortcuts that can definitely speed up your overall usage, but I guess it will depend on what you want to do exactly

Too bad, I wish I could just type in formulas as they're given in my courses. If I use Python, will I be able to use the "solve" function and use graphs normally? What would using Python consist of? I'm pretty much a noob here.

For the graphs, a few things annoy me. The calculator names the function always f1(x), f2(x), etc. I'd like to name it something different. It seems to be very dependent on x and y because it considers these the coordinates, but also variables at the same time. I'd like to separate that, for example having a variable r on the Y axis, and so on.

Another annoying thing is that I haven't found a way to zoom in at a level at which it will give me round numbers. Even if I'm working with numbers like 1, 5, 10, etc., zooming in on the graph won't show me straight numbers, but decimal numbers like 2,464 and 1,9786, etc. It makes it hard to read the graph. Why not simply have lines and bars and each one is a number and just show me the numbers 1, 2, 3, etc. or 0, 5, 10, 15, etc.

Do you know if any of this is possible? Thanks so much for your help!

For the zooming, have you tried using the window settings to get the zoom you want?

Sadly, I have, but it's a true mess. It's possible, but it seems you can't save it. So you have to re-set it for every document. I'm surprised how bad this calculator is. Especially at that price. Are these even legit tools that people use for solving problems and working, or are they just gadgets that are bought because they were bought in the past, when they perhaps had some utility?