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Anyone know how I can do Absolute Value on this?

The quick way to determine absolute value is to square the value and take the square root of that.
So on the TI, with the value on-screen, just push these 2 keys in sequence (they are right next to each other):

Jun 04, 2015 | Texas Instruments TI-36 X Solar Calculator

1 Answer

When trying to divide two complex numbers in a+bi format, some of my students get the Data Type error message. I don't know why or how to help them. Can you help? Each complex number was enclosed in...

Here is screen capture of a similar calculation, performed on TI Nspire with TI 84 plus keyboard.To type in the imaginary unit use key sequence [2nd][dot], do not use [ALPHA][X^2] for the letter i.

Jun 08, 2011 | Texas Instruments TI-84 Plus Calculator

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TI-83 Plus: I tried changing the number of decimal places to 4, by the following: MODE + NORMAL + FLOAT then right arrow but the numbers there are 0123456789 and I cannot change that. Help

When you reach the FLOAT line and see the string of numbers 01 234 etc. you are supposed to use the right arrow to highlight one of the numbers in the string of digits. If for example you highlight the number 4 and validate, your results will be displayed with 4 decimal places.

Apr 18, 2011 | Texas Instruments TI-83 Plus Calculator

3 Answers

Fibonacci formula won't graph, but will show table

Fibonacci sequence is the series of numbers 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...
At first type Fibonacci equation in Y editor with condition x>=0 and then graphing it. See captured images with enlarged form of graph




Apr 11, 2010 | Texas Instruments TI-84 Plus Silver...

2 Answers

Different answer fro my TI-89 AND MY tI-81

Your TI81 can only perform numerical calculation: It always give uour numbers. The TI89, a more sophisticated calculator, can of course do numerical calculation, BUT ALSO symbolic ones. You ask it for the derivative of sin(x) and it will give you cos(x).
Anyway, if you want a decimal result for you calculation above one of the numbers must have a decimal point (instead of writing 2PI write 2.PI.

The TI 89 can do exact calculations. But if you want approximate results any number in the sequence of operations must have the mark of a decimal. Numbers without decimal marks are considered integers, Integer numbers with a decimal mark are treated as floating point numbers ( meaning decimal).

Hope it clarifies things for you.

Nov 15, 2008 | Texas Instruments TI-89 Calculator

1 Answer

The number e

e to the first power is 2.71...
Press the following buttons in sequence: 1, 2nd, LN, + and then your numbers.

Jul 31, 2008 | Texas Instruments TI-30XA Calculator

1 Answer

Need unlock code for Toshiba dvd player/recorder RD-XS24. Can anyone help? Thanks. tomr.

Ensure that there is no disc in the tray,

Using the remote:

1, Press the “0” button 5 times at approximately one second intervals.

2, Press the “Instant replay” button.

3, Press the following sequence of numbers very quicly (less than one second
intervals) :

If your player is a Region 1 machine, the sequence of numbers to press is 2,
9, 3, 3, 4 and 9 :
If your player is a Region 2 machine, the sequence of numbers to press is 5,
7, 5, 3, 8 and 9 :
If your player is a Region 3 machine, the sequence of numbers to press is 5,
6, 7, 3, 2 and 9 :
If your player is a Region 4 machine, the sequence of numbers to press is 5,
6, 8, 8, 4 and 9 :
If your player is a Region 5 machine, the sequence of numbers to press is 5,
3, 8, 1, 4 and 9 :
If your player is a Region 6 machine, the sequence of numbers to press is 2,
4, 4, 6, 2 and 9 :

4, Open and then close the tray.

Jul 30, 2008 | Toshiba Televison & Video

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TI-30xa Calculator Reciprocal Key

It does. For instance, to get the reciprocal of 4, enter the following sequence: 4 [1/x] (this last key to be found third row down, second black key in). The decimal 0.25 will appear as the result. Convert this, if you want, to the fraction 1/4 by pressing the yellow function key [2nd], then {F<>D] located bottom, far left. Hope that's what you wanted!

Sep 28, 2007 | Texas Instruments TI-30XA Calculator

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