So I bought a TI-89 Titanium...

**skelooth** · 04-09-2006, 12:08 AM

FORK...

It came out to $170.08 ... :blue:

I have a TI-83 but it does not take derivitives... taking derivitives by hand is PAINFUL.... I have a test on Thursday that's going to involve rates and related rates, optimization, etc. The questions are ridiculously hard. This calculator is going to SAVE MY LIFE.

I'm going to sell my Ti-83 plus for 50-60 bucks hopefully....

Also the ti-89 titanium was a long term investment. This calculator does it all. It does 3d graphing, linear algebra, differential equations (top level calc) and all levels of calc and trig etc... Now I just gotta learn how to use the freakin thing LOL.

**jiza101** · 04-09-2006, 12:09 AM

Got any pics

**skelooth** · 04-09-2006, 12:13 AM

This calculator has a processor that rivals macs from the early 90s. This thing does everything... including games mwahahaha.

**Viperspit** · 04-09-2006, 12:18 AM

:smilien: :smiliee: :smilier: :smilied:

**skelooth** · 04-09-2006, 12:23 AM

Quote:

Originally Posted by Viperspit

:smilien: :smiliee: :smilier: :smilied:

and damn proud

I'm a weight lifter, a programmer/software developer, a mathematition, a tutor, a cheerleader, and all around great guy

Walking contradiction?

**Fitnfirm** · 04-09-2006, 12:24 AM

Too bad youll never master it!!!!

Master Of Puppets · 04-09-2006, 12:26 AM

Quote:

Originally Posted by Viperspit

:smilien: :smiliee: :smilier: :smilied:

w3rd

MOP

**skelooth** · 04-09-2006, 12:26 AM

Pfft, I know how to take derivitives and graph derivitives, that alone will save my ass on this test. If I can automate optimization, finding the tangent based on a related rate, and get it to play a game of tetris I'm set for an A in calculus.

Master Of Puppets · 04-09-2006, 12:28 AM

Quote:

Originally Posted by skelooth

Pfft, I know how to take derivitives and graph derivitives, that alone will save my ass on this test. If I can automate optimization, finding the tangent based on a related rate, and get it to play a game of tetris I'm set for an A in calculus.

English please. And tetris sucks. :p

MOP

**Viperspit** · 04-09-2006, 12:34 AM

Quote:

Originally Posted by skelooth

Pfft, I know how to take derivitives and graph derivitives, that alone will save my ass on this test. If I can automate optimization, finding the tangent based on a related rate, and get it to play a game of tetris I'm set for an A in calculus.

ummm, I'm still working on my multiplication tables. I'm up to the 7's though. Watch..... 7 x 8 = 62 :boink:

**skelooth** · 04-09-2006, 12:34 AM

a derivitive of an equation models the equations rate of change (velocity if modeling moving objects), the second derivite models the derivitive's rate of change (acceleration if a moving object, area if it's the derivitive of the volume of a 3d object).

Optimization uses the derivitives to optimize modelled situations... such as how to optimize gas usage if it were a model of a cars gas milage as a function of speed.

Related rates are something like... a cone shaped funnel has water in it. The water's surface has a radius of 2", the water is emptying at 3" per second. At what rate is the height of the water changing at .75 seconds.

Do you see why I need a 170 dollar calculator yet? LOL...

**skelooth** · 04-09-2006, 12:36 AM

my calculator can do that too, haha

**Viperspit** · 04-09-2006, 12:37 AM

Don't you need to know the surface tension of the water first?

Quote:

Originally Posted by skelooth

a cone shaped funnel has water in it. The water's surface has a radius of 2", the water is emptying at 3" per second. At what rate is the height of the water changing at .75 seconds.

Do you see why I need a 170 dollar calculator yet? LOL...

**skelooth** · 04-09-2006, 01:13 AM

I'm sure the problem in the text book will give that too ... :scared1:

mid semester the calculus is getting freakin hard...

**skelooth** · 04-09-2006, 02:23 AM

omfg i just spent an hour or so reading the manual... this calculator is POWERFUL..... dude. I could damn near conquer the world with this thing.

**EME** · 04-09-2006, 02:27 AM

When I was in college, we couldn't use graphing calculators in Calculus, Diff E, etc..... The HP's were the bad ass models back then....
We had to do all the calculations by hand.. even in my Eng. classes.

You guys are soft now..... :boink1:

- EME

**skelooth** · 04-09-2006, 02:37 AM

Hah it's true. My professor always says how lucky we are to have these things.

I can't even imagine the work and time involved in finding something soooo simple like a linear regression by hand! This calculator is right up there in power with Maple and Mathmatica. This thing can even solve multi variable equations in a few key strokes. Not to mention... finding differentions, integrals, inflection points, etc... I feel like I'm saved haha.

A_N_91 · 04-09-2006, 02:41 AM

I'm in HS and I use a TI-83 because I just right all my notes and equations in it. And when I'm bored, I just draw some pictures in the graphing plot.:nosthumbs

04-09-2006, 12:08 AM	#1
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	So I bought a TI-89 Titanium... FORK... It came out to $170.08 ... :blue: I have a TI-83 but it does not take derivitives... taking derivitives by hand is PAINFUL.... I have a test on Thursday that's going to involve rates and related rates, optimization, etc. The questions are ridiculously hard. This calculator is going to SAVE MY LIFE. I'm going to sell my Ti-83 plus for 50-60 bucks hopefully.... Also the ti-89 titanium was a long term investment. This calculator does it all. It does 3d graphing, linear algebra, differential equations (top level calc) and all levels of calc and trig etc... Now I just gotta learn how to use the freakin thing LOL. __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 12:09 AM	#2
jiza101 Rocco Siffredi Join Date: May 2005 Location: On Set Posts: 621 Recipes: 0 Rep Power: 10	Got any pics __________________

04-09-2006, 12:13 AM	#3
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	This calculator has a processor that rivals macs from the early 90s. This thing does everything... including games mwahahaha. __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 12:34 AM	#11
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	a derivitive of an equation models the equations rate of change (velocity if modeling moving objects), the second derivite models the derivitive's rate of change (acceleration if a moving object, area if it's the derivitive of the volume of a 3d object). Optimization uses the derivitives to optimize modelled situations... such as how to optimize gas usage if it were a model of a cars gas milage as a function of speed. Related rates are something like... a cone shaped funnel has water in it. The water's surface has a radius of 2", the water is emptying at 3" per second. At what rate is the height of the water changing at .75 seconds. Do you see why I need a 170 dollar calculator yet? LOL... __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 12:36 AM	#12
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	my calculator can do that too, haha __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 12:18 AM	#4
Viperspit Incognito Join Date: Dec 2005 Posts: 680 Recipes: 0 Rep Power: 14	:smilien: :smiliee: :smilier: :smilied:

04-09-2006, 12:24 AM	#6
Fitnfirm Spanky Doodle ! Join Date: Jan 2006 Location: Muscle Land Posts: 1,821 Recipes: 0 Rep Power: 47	Too bad youll never master it!!!!

04-09-2006, 12:26 AM	#8
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	Pfft, I know how to take derivitives and graph derivitives, that alone will save my ass on this test. If I can automate optimization, finding the tangent based on a related rate, and get it to play a game of tetris I'm set for an A in calculus.

04-09-2006, 01:13 AM	#14
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	I'm sure the problem in the text book will give that too ... :scared1: mid semester the calculus is getting freakin hard... __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 02:23 AM	#15
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	omfg i just spent an hour or so reading the manual... this calculator is POWERFUL..... dude. I could damn near conquer the world with this thing. __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 02:27 AM	#16
EME Super Moderator Join Date: Mar 2005 Posts: 3,264 Recipes: 0 Rep Power: 51	When I was in college, we couldn't use graphing calculators in Calculus, Diff E, etc..... The HP's were the bad ass models back then.... We had to do all the calculations by hand.. even in my Eng. classes. You guys are soft now..... :boink1: - EME __________________ PhysiqueFXonline - Online Nutrition and Training with Michael and Kendra Elias: www.PhysiqueFXonline.com www.MichaelandKendra.com My wife, and IFBB Fitness Pro Kendra Elias' personal site: www.KendraElias.com Proud member of Team ALR: www.ALRIndustries.com

04-09-2006, 02:37 AM	#17
skelooth eh heh heh Join Date: Aug 2005 Location: Behind you Posts: 7,202 Recipes: 0 Rep Power: 158	Hah it's true. My professor always says how lucky we are to have these things. I can't even imagine the work and time involved in finding something soooo simple like a linear regression by hand! This calculator is right up there in power with Maple and Mathmatica. This thing can even solve multi variable equations in a few key strokes. Not to mention... finding differentions, integrals, inflection points, etc... I feel like I'm saved haha. __________________ http://loseover100lbs.com/misc-f7.html

04-09-2006, 02:41 AM	#18
A_N_91 Pro Stature Join Date: Jan 2006 Location: New Jersey Posts: 849 Recipes: 0 Rep Power: 11	I'm in HS and I use a TI-83 because I just right all my notes and equations in it. And when I'm bored, I just draw some pictures in the graphing plot.:nosthumbs

04-09-2006, 02:44 AM	#19
skelooth eh heh heh Join Date: Aug 2005 Location: Behin