Graphing Calculators

[Silverflame]

A TI-83+ Although I kind of regret and wish I got a TI-89 instead, there's no way I'm going to waste a hundred dollars when I've got a perfectly good machine right here anyway.

I once had games on it, but I deleted them all. I currently despise people at school who play games on their graphing calculator, using a machine designed to work for playing cheap games that they get way too much into.

 

[anonymous4401]

Well, I have a TI-83 Silver, a TI-83, and a TI-89. Guess which is the only one I paid for, B'sides, I enjoy the simple program-ability of the TI-83 over the menus of the TI-89.

 

[Perfection]

Originally posted by CivCube
Enter things just as quickly? Bah. It takes forever for me to hunt and peck the commands. See, with a scientific, the arithmetic buttons aren't mingled with the trig ones.

Well after you get used to the calculator, things become a breeze, the only annoyance with the 89 is to enter csc sec and cot you have to do one over sin cos and tan (repsectively), but the real power is in it's calculus functions, it has built in systems for finding Arc Length, Derivitives, Integrals, differential equations and Taylor polynomials, it can also solve limits and infinite sums and products. My reccomended calculator progression is: Pre-Alg and lower use any 4-function, Algebra 1 to Precalc use a Ti-83 then in calc use an 89

 

[anonymous4401]

Can it convert from Cart to cylindrical & spherical coordinates? Can it do line and surface integrals?

 

[Perfection]

I don't think so, but I won't do multivariable calc until 12th grade so I can't be 100% sure

 

[anonymous4401]

? Multivariable? Cool! I just realized the stuff I was doing was multivariable calculus!

 

[Perfection]

It's stupid though, because at my school you must take the AB course before taking the BC which is like 6 weeks of new info, and the rest is review, and i hate math review courses. Well, guess I'll use it as a study hall for my science courses

 

[nihilistic]

Originally posted by anonymous4401
Can it convert from Cart to cylindrical & spherical coordinates?

It can integrate without having to do these transformations. And yes, it can convert from cartesian to cylindrical. Spherical, well, spherical coordinates are just applying the cartesian -> cylondrical function again. I can write a function to do it.

Originally posted by anonymous4401
Can it do line and surface integrals?

Yes.

 

[nihilistic]

Originally posted by anonymous4401
? Multivariable? Cool! I just realized the stuff I was doing was multivariable calculus!

No, the coordinate systems are stuff you should have learned in precalc. However, since almost nobody actually learned it precalc, it must be introduced in multi.

 

[anonymous4401]

Grrr.... What can this cal-culator notdo?

 

[nihilistic]

Originally posted by anonymous4401
Grrr.... What can this cal-culator notdo?

For one thing, it cannot find limits of functions in spaces other than R. An example of this would be a function of 2 real variables mapping onto R with a singularity somewhere.

 

[anonymous4401]

Can it do hyperbolic geometry?

 

[nihilistic]

Originally posted by anonymous4401
Can it do hyperbolic geometry?

No, but I can definitely code some Lobachevskian stuff if I review the text.

 

[anonymous4401]

This cal-culator sounds intriguing, yet I do not know how to program it. I can't make heads nor tails out of this TI-89.

 

[Perfection]

It can't graph the zeta function without porgramming

 

[anonymous4401]

Boy, I feel like an idiot here. I've just finished the equivalent of the fourth semester of Calculus and I don't know what you're talking about.

 

[nihilistic]

Originally posted by anonymous4401
This cal-culator sounds intriguing, yet I do not know how to program it. I can't make heads nor tails out of this TI-89.

If you know BASIC (pun sort of intented), then you can program all the TI calcs with minimal new stuff to learn. If you prefer C, there is also TI-GCC. Of course, you can also read the manual.

 

[Perfection]

Don't worry, it confuses the hell out of me too!

 

[anonymous4401]

I don't read manuals nihilistic. Just tell me how to get to the "enter the program you want to program" screen.

 

[nihilistic]

Originally posted by anonymous4401
I don't read manuals nihilistic. Just tell me how to get to the "enter the program you want to program" screen.

APPS -> 7