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What do you use?
I just got an HP49g+ - mostly using it in RPN mode, which is neat. Resolution is kind of inferior to that of the TI-89 though

A Casio fx-827TL.

I like it.

I own a TI-83 that I haven't really used with any sort of regularity since junior year of high school, or for about six years. That was more or less the last time I had a math course...

HP10BII for financial calculations and a TI83 for the rest

TI-83 for the odd calculation here and there.

Ti-89 from high school.

TI-89 for my Math courses, TI-83XIIS for my rest.

Sharp EL-531VH I've had for a few years. Good for quite a few calculations.

Casio CFX-9850G. About six or seven years old, but I know how to program it to do pretty much any calc I need, and getting a scientific calculator to emulate a financial calculator is useful in an MBA program.

TI-89 all the way. It is very important to a lot of the courses I do, considering calculus, vector algebra, linear algebra, and/or complex algebra are fundamental to pretty much all the math I do, so the 89 really lightens my workload by doing all that sort of basic stuff for me. I've got a Matlab-esque signal processing program suite for it as well that is really useful when I don't have a computer handy.

I own a TI-89, and my Windows CE devices have an HP-48 emulator installed on them. In high school, I used an old HP-25 scientific calculator that was built in 1975 (gods, that was a great calculator. Sad that one of the all-too-fragile LED digits no longer displays correctly after I accidentally dropped the calculator.) So I know both "regular" and RPN notations.

However, for most of my calculating needs, I end up using the Calculator program in Windows.

Calc.exe

I do not need mutch, and paper and pen works in 99% of all math I do.

Casio fx-991s.

I had a TI-83 (I THINK), but the most use I got out of it was playind Drug Wars and Tetris.

TI-89 (with RPN shell and equation editor), and an HP non-RPN scientific.

TI-83+

NeoGoomba wrote:I had a TI-83 (I THINK), but the most use I got out of it was playind Drug Wars and Tetris.

Shit, I had those, too.

Also for a time that stupid unplayable penguin Super Mario Bros. clone...

A casio FX-82ES.

TI-86

TI-89

TI-83+ which is mostly used to entertain myself during boring classes. Matlab and sometimes Maple do a lot of the hard work now.

TI-92.

When I have a kid I'm not getting him a graphing calculator for middle or high school. After that it's his business.

Even scientific calculators make you lazy sometimes. I bet there's oodles of high school students who don't understand exponent laws and instead punch in 5e50 in without knowing what it means.

Sharp EL-510R.

Brian

brianeyci wrote:When I have a kid I'm not getting him a graphing calculator for middle or high school. After that it's his business.

Even scientific calculators make you lazy sometimes. I bet there's oodles of high school students who don't understand exponent laws and instead punch in 5e50 in without knowing what it means.

Sharp EL-510R.

Brian

Scientific calculators here are a must, you need atleast their large number displays.

For what? Multiplication of really big numbers? How many significant digits does your teacher go up to, more than eight? I doubt it. Math isn't about a calculator. Actually I haven't used a calculator in a test or an exam since high school--you're not allowed any aids in my university math classes. Engineers are obviously different.

Brian