Calculator Definition and 518 Threads

Hi, In 5 months I am sitting a university math competency exam to gain entry to university. It covers the entire high school curriculum like algebra, geometry, trig, and calculus. I have never did calculus so i am probably on an impossible mission but i will attempt it anyway. My...

My professor today told the class(engineering statics) that we should invest in the ti-89 or an equivelant. He claimed that the ti-83 was good for middle school but not for University work. However, I was forced to buy a ti-83 because the math department at my school doesn't allow anything...

Are there any calculators out there (like ti's or other) that can communicate with other calculators via text messaging? Our teacher said he will not allow any calculators on one of his exams because of this. I find it hard to believe that such a thing exists because i can't turn up any...

Is there a free Laplas Transform Calculator out there on the web? Perferably a java script. But aslong as there is an online calculator that can give a final answer, it doesn't matter. Thanks.

What is this question going for. I can identify that OTA is a right angled triangle... Where do I go from

Hey guys Anyone knows a good calculator for condenser, evaporator, or heat pump design? common unknown parameters would be number of passes, or length of columns, depth or rows... Thnks

I was trying to build a program that let's you find the integral and shows you the curve after giving you the solution. And I don't know how to write the code for the calculator to ask you for the y value. I know how to use drawf but you can't set your zoom to zoomfit because your calculator...

like the title, which calculator is your favourite and why? I'm using a Texas Instruments Ti-89 Titanium, and I'm very happy with it at the moment. What about Hewlett-Packard anyone has experience with those? Do you think that calculators will have colour screens and cameras in the future...

Hi all, Just wanted to note that we created an online graphing calculator: http://fooplot.com/ which should work in most modern browsers (except Safari). Hope you find it useful - share it, let us know if you find it useful, see any bugs, or have any suggestions about what would be useful...

Google Smart Calculator Want to add up a list of numbers, convert from miles to kilometers, or evaluate some other mathematical expression? Instead of using a piece of paper, your calculator, or a computer math software program, you can now solve mathematical problems with this AJAX JavaScript...

I have a TI-83 graphing calculator and am thinking about upgrading to the 89 because extra useful features. Is it worth it?

Homework Statement Suppose that a wind is blowing from the direction N45ºW at a speed of 50 km/h. A pilot is steering a plane in the direction N60ºE at an airspeed of 250 km/h. Find the true course (direction) and ground speed (magnitude) of the plane. Homework Equations The Attempt at...

Help me decide. I want something that can help w/ calculus,trig,physics,statistics(not an absolutely necessary feature) and chem(not sure what features would be added to help this, but if you know then do tell) and allowed on SAT/ACT. any ideas

How often should you use your calculator? I try to use mine as least as possible, even if it means doing trivial division or multiplication on paper or in my head. I seriously forget to use the calculator and sit there trying to figure stupid stuff out. This gets me into trouble when I make...

Oh darnit, I got a virus on my calculator from downloading a program onto it I assume. Should have sticked to writing my own! It is incapacitated. I need to wipe the disk from my computer, but how can I do this?

Hello everyone, sometimes it's easier for me to run calculations on my computer rather than to go find my graphing calculator. Are there programs out there that have all the functions (or more) of my graphing calculator (TI-83+). Also if anyone knows of any good like bluetooth keypads to...

Hi, I was looking for some Windows software that did the job a graphing calculator does, but on the computer screen. I've been using the calculator that comes with Microsoft Student, but it lacks some features that would be quite useful (specially when it comes to complex functions). Which...

OK, In high school, I'll be taking math up till AP Calculus BC, and in University, I'll be going in sciences, and will need a lot of math. I'm planning to buy a TI-89 Titanium. I want one, widely used, and will easily fulfill all my needs. Is this a good choice?

I know this might be a stupid question, but I wan't to know if any of you know of any sites that convert between RA and dec coordinates to altitude and azimuth coordinates. I mean I found this site: http://home.att.net/~srschmitt/script_celestial2horizon.html But unfortunately you can't...

I'm not sure of whether or not I should waste 150 dollars to buy one of the most powerful calculators released by TI, the Ti-89 titanium. For all of you who own one or knows someone who does, how is it?? Right now I have a Ti-84, but I don't think it is as efficient as a Ti-89.. And yes, Ti-89s...

her new url is http://faculty.cns.uni.edu/~morgan/ajjar/Cosmology/cosmos.html her cosmology calculator is a handy resource especially since Ned Wright modified his cosmology calculator earlier this year----July sometime. Now, with Wright's, you can't input a redshift z. You have to input a...

How would I plug cos^2(30) into my scientific calculator to get the right answer? Thanks.

Best online calculators Here are a few websites that have online calculators: www.quickmath.com - powered by webMathematica: this site is very handy and will do algebra (factoring, simplify, partial fraction decomposition, expand), solve equations/inequalities (single or a system), plot...

-81^(1/4) = -4square root sign 81 =-3 how do i key this into my calculator: = "-4square root sign 81" *note I am working with a $20 casio* thanks ~Amy

When you use Microsofts calculator's Exp function it does not raise the number you enter exponenently it requestions another number and then does this result = firstnumber * 10^second number What is it doing?

Hi all. I have a Casio fx-85MS scientific calculator but forgot how to work it. I need to do calculations like 2000/(1+0.08) to the power of 9. Its a formula for working out the value of money in x amount of years at 8% discount factor. I can't rememer how to get the power of function on the...

How can i write for example: 2cis(pi/3) in my ti83+ calculator? how do i write cis?

Just a quick question about the Ti-83+ calculator. After you have hit the equals button to provide the solution for an equation, how do you get back into the equation to make any changes? The error key is not what I'm looking for, is it possible to make any changes you want in the equation? I...

Hey guys, I'm an actuary student and this semester my important math courses are Calculus 2 and Linear Algebra I besides financial math II. I also have calculus 3-4, Linear algebra II, Prob. I-II, and statistics I-II in my future. Anyway I'm getting a calculator and I can't decide between...

I'm looking for a particular tool I once came across. It took a decimal number as input and tried to give some calculation which would return that number as the result. I'm familiar with http://oldweb.cecm.sfu.ca/projects/ISC/ISCmain.html, but neither of these is the tool I'm looking for...

Does anyone know of an online lambda calculator? Or actually I need an online calculator that allows the result to be used in the next calculation. Like the "Ans[wer]" key on some realworld calculators. It allows me to see for myself how for example the Cauchy series "1/Ans + Ans/2" converges...

Im curious if there is a good method of calculating the tangent of an angle without use of a calculator, An approximation or a fast method for mentally calculating it would be ideal. All suggestions welcome.

I understand that the limit of sec^2(x) as x approaches pi/2 is infinity (increasing without bound), and I understand the meaning of this in terms of the epsilon-delta definition of an infinite limit. I also understand why the limit of sec(x) as x approaches pi/2 doesn't exist. What I'm a...

Hi, I'm in need of an earth-sun distance on-line calculator for download (freeware) to process computations for Landsat imagery. Can anyone recommend any web sites to hit? Thanks, ttrsbug

Hey Guys, In PreCalculus, today, I received a fairly difficult project -- probably not as hard as you would think, but I do need help. We are asked to create one picture on our Graphing Calculators. I have done about 11 so far, but none are as I like them. This is what I put into the Y...

Hi, any recommendations? Costco has some fancy TI's at decent prices right now (TI-84 Plus Silver, TI-89 Titanium). Thanks, Howard

Well, here is a question that popped into my mind when I was trying to open a simple calculator. Calculators store numbers in binary form, depending on the present or abscense of electrical current, according to http://mathforum.org/library/drmath/view/52503.html". What devices are behind this...

Hello - I'm sorry if this question doesn't really apply here, but the Math & Science Tutorial wasn't very active so I decided to come here instead... What should my calculator mode be in when graphing a hyperbolic WITH trigonometric function? (My function is sinx*coshx - sinhx*cosx). I'm...

I believe that this calculator generates answers assuming that the only force acting on a falling object after it has encountered a stopping surface is the force of the stopping surface. The calculator needs to factor in gravity throughout the whole fall. Would someone else please verify...

Do you use calculator programs for calculus?? If so what is good?

is that a good deal? Not even opened, its on clearence at a local walmart near my house.

I'm thinking of buying a graphing calculator, I think my options are TI-89 Titanium or the HP 49g+, so do u guys know which is better for an EE and if there is any other choices. Thanks.

My prof has inflicted us with his infinite wisdom in that calculators are stupid because they can only do a certain series of things they're programed to do. Based upon that principle, he's also inflicted the following problem upon us, of which my groupmates and I have no idea how to even get...

Hi guys, ok 120 degrees / 180 degrees x Pie radians = 2.09 Radians Thats the problem, and the answer Question is how do get that answer on My TI-83+

On this chart: http://www.banksite.com/calc/retire?with=30000&lngt=5&lngt=5&pay2=0.0&intr=7.5&outt=HTML+Tables how did they calculate 130479.79? I know how they got the "Interest" and "End Bal" just not the 130479.79. Anyone have any suggestions? Here is the original form...

How long does your graphing calculator's batteries last? I think somebody might have switched mine. The calculator won't turn on. Does that mean my backup battery is out? I sure hope I didn't lose all the programs I programmed. That would suck. Well, more than suck. :cry: HOW CAN THERE BE A GOD?!

Can you count and add all the numbers 1-100 without using a calculator?

I just got the caluclator and I love it. Someone told there is a way to save formulas and all you have to do is enter the number and it will work it for you. Do any of you guys know EXACTLY where I can get it? My friend also has megaman on his, how do I get that?

Why won't my Graphing Calculator link with my computer?? ok here is the breakdown... I am running windows XP on my computer i installed the program last nite (with some help from you guys) and was really excited to start working with it but for some reason the graphing calculator(TI-83+) won't...

what is the best pocket PC (graphing) calculator for a physicist?