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My Ti-89 Titanium Is Displaying An

TI-89 Display question. What does E12 mean?

I entered 5,000e^(0.43322*48) into my TI-89 Titanium ( it's a natural logarithm ) and it gave me this:
5.36949E12
I suspect this is some sort of notation for a number that's longer than the field allows, but I can't find anything explaining WTH it's supposed to mean. I can't enter that as an answer, I need to be able to convert it into normal notation.

Why does my T.I. 89 display "false" for Trig Identities like Sin(2x)=2Sin(x)Cos(x)?

That is very odd. I own a TI-89 Titanium and I tried the same problem you just did and I got "true". I tend to have a lot of mistakes with my TI-89 Titanium whenever I use the solve app with trigonometric functions and identities simply because I misplace some of the parenthesis; so, my suggestion to you is try placing parenthesis around the identities. In addition, perhaps you should try reseting your calculator back to defaults or using the "NewProb" feature under F6.

How do I get my ti-89 to display fractions as decimals?

I enter a division formula in my new ti-89 titanium and it gives me the answer as a fraction i.e. 222/5 only shows up as 222/5 not 44.4 I remember on the 84 i just pressed math and could choose the form of my answer but I can't find this option on the 89

Please help with my TI-89 titanium calculator!?

Somewhere in the past you've obviously assigned a "value" or meaning to the variable x and your calc has stored this.

I've a IT-92 calc so it will be a bit different to yours, but along the top of my screen I have different functions I can use F1, F2 etc. My F6 is called "Clean up" and if I select this/hit my F6 button I get three options, one of which is "1. Clear a-z". If your calc operates the same way as mine (which it should pretty much do), when you then select 1 it will clear all the info stored for each of these a-z variables.

Why is my Ti-89 Calculator rounding 1.5 to 2?

maybe your calculator doesnt like dealing with decimals. i know i dont!

TI 89 Titanium help, getting answers for trig functions?

I just recently got a TI 89 titanium as a gift, and I am takin Precalc.
It seems like an awesome calculator, only problem is, is that I dont know how to use it.
So my question is.
How do I actually get the calculator to solve something?

Because when i enter sin(6), it comes back as sin(6), And I just want the answer.

I really hope someone can help me with this, Ive looked through the manual, but nbothin found.

How do I get my TI-89 calculator to stop rounding?

"mode"
"display digits"
"float 12" (or however many you want - 12 is the highest)

How do I prevent a TI-89 from ever using scientific notation?

you press 2nd and then mode. switch to non scientific notation. the calculator always keeps track of your lower decimals even past, in your case, past the cent, it just doesnt show it. you can tell it in the mode window to always show a certain number of sig figs. just switch to that and ramp up the number of figures to be shown. at least thats how it works in the 83.

Why does my TI-84 calculator say the sin(4pi) = -2e-13 when it should be 0?

Rounding error. Let's say you wanted to compute [math]3\cdot\tfrac13-1[/math], but you could only do calculations up to 4 decimal places. You'd compute:1/3 = 0.33333*(1/3) = 0.99993*(1/3)-1 = -0.0001In scientific notation, you'd report that answer as -1e-4, even though the true answer is zero.Your TI-84 does the same thing. Although your calculator does computations up to many more (binary) digits, it's still going to round off 4pi somewhere before applying sine, getting something that's not quite zero.On the other hand, on a TI-89, you would get zero. Why? The TI-89 does computations symbolically, which means that rather than combining numbers, it instead simplifies expressions using the same techniques you would use in a math class. It recognizes sine of a whole multiple of pi as something it knows how to simplify, and gives the exact answer, zero.

Can a TI-84 count as a scientific calculator as well as a graphing calculator?

Most likely the teacher said that because they knew that graphing calculators can do certain calculations automatically that the teacher wants you to do manually.I do not believe that there are any calculations that a scientific calculator can perform that the TI-84 cannot.I can suggest a very good scientific calculator though.TI-30XS MultiviewLike a graphing calculator, it has the mathprint feature that lets you see the whole expression before you hit enter. Also like a graphing calculator, you can use the arrow keys to go back to a previous calculation if you just need to change one or 2 numbers, instead of doing the entire thing from scratch.It also has a table feature, which is like a poor man's graph once you figure out how it works.

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