Graphing Calculators

[hbdragon88]

That's cool!

 

[anonymous4401]

So, I could have used mine to ace my Acc. Calc III final? Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[Perfection]

Well now the AP test is divided into calculator and non-calculator portions, I really don't see way the differences between the 89 and 92 warrant such exclusions, one of my friends who is calc dependant had to trade in his 92 and got a school provided 82.

 

[Knight-Dragon]

Bah, when I did my official exams in my time, we aren't allowed calculators. Not even the simple normal plus and minus ones...

 

[Rout]

Wow, such a lot of posts for such a mundane subject!
Actually I rather like gadgets and those grqaphing calculators are pretty cool, though id never use it properly and they are banned from our university exams.

Originally posted by Pillager
IIRC, 69! was the calculation that took the longest time on my calculator. We used to waste away maths classes seeing who had the quickest calculator.

My boring old Sharp scientific did that instantly

edit: Well, after it took me five minutes to find the factorial button

 

[Pillager]

Well, this would have been at least ten years ago.

 

[Rout]

Originally posted by Pillager
Well, this would have been at least ten years ago.

Aww, thats a shame - we coulda had a CFC league of fastest calculators

 

[hbdragon88]

What's funny is that in my first period a couple of seniors come in quite often to ask for our calculators. Graphing calculators aren't allowed, they say, so they have to borrow our non-graphing type. I always voulenteer my calculator - a Texas TI-30 STAT.

 

[nihilistic]

Originally posted by Rout
My boring old Sharp scientific did that instantly

Your scientific calc just multiples 69 floating point numbers together to get another floating point number: 1.711224524281413*10^98. The TI-89 under "exact" mode would give you the actual number:
171122452428141311372468338881272839092270544893520369393648040923257279754140647424000000000000000

However, he probably made a typo, as the TI-89 can make that bignum calculation in a fraction of a second. The factorial calculation that is worth racing at is 299!, since 300! will go over the 2^2040-1 limit for bignum storage purposes.

 

[Pillager]

My Casio fx-992s takes precisely one second to calculate 69!. Any factorial higher than 69 it cannot compute.

 

[nihilistic]

Originally posted by Pillager
My Casio fx-992s takes precisely one second to calculate 69!. Any factorial higher than 69 it cannot compute.

That's because your calculator's floating point limit is 10^99. The TI-89's "exact" limit is 2^2040-1 and floating point limit is 10^999, which menas that the maximum factorial that the 89 will compute exactly is 299!, while the maximum for the floating factorial is 449!.

 

[Pillager]

Mine does have a pretty slidey case though

 

[CruddyLeper]

I never use a calculator for graphing. PCs are so much more colourful, with higher res than any LCD screen can hope for. Hard copy is easy to get, and hey, you can even use the Internet to pass the results around and have other people laugh at your mistakes.

 

[HuckFinn]

Deviant Casio user... CFX-9800G. I can sincerely say it stinks. Solves only 3rd degree polynomials, doesn't have a real programming language, is big as hell...

It has three colors and a "Windows" interface in the main menu though

Then again, I've never needed to really use the calculator to its full potential... that's what computers are for. Nothing quite like writing an elegant Scheme program to do the number crunching or drawing graphs with gnuplot

 

[Ville]

I have TI-86.
I got it as a birthday present this year. (I'm 14)
I'm on 8th grade, we go to school when we are 7 so it's a year later than in USA AFAIK, BUT I'm 1 year younger than others in my class because I was only ½ year in 1st grade and ½ year in 2nd grade so I had 1st and 2nd grade in ONE year because I was too good at school and my teacher didn't know what to do with me so I did 2nd grades exams and I did well in there. (I don't know what would happen to my teacher if that wouldn't been done, or to my eagerness to study )
OK that was slightly off-topic, this wasn't meant to be like this but you know what happens when you start to write, you can't stop

But anyways, HOW DO YOU USE THAT GRAPHIC THING

 

[jack merchant]

Originally posted by hbdragon88
I always voulenteer my calculator - a Texas TI-30 STAT.

I've got that one too ! It's been 8 years or so since I last used it, but it gets the job done