Question about Texas Instruments TI-84 Plus Calculator

How do I find the divisor pair list on the Ti-84 plus? For example, 20 would be 1,20 or 4,5. I did this before using the y= function. y1 and y2 show the divisors on the table and x=20. It also involves using the the table set up and some other button. Thank you for helping me. :0)

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Posted on Jan 02, 2017

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SOURCE: table problem

I have had the same problem luckily i figured out what to do. 1. press the apps button 2. then there should be an unwanted app(it was the only one on mine) 3. pick it and hit enter 4. go to uninstall on the top of ur screen problem solved!!!! hope this helped

Posted on Oct 02, 2007

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SOURCE: error :invalid DIM

This is my first post on this site, but I've had friends at school ask me about this. Apparently I'm like a calculator genius or something...

One solution I know of is clearing the RAM. Sounds strange, doesn't it? But it fixed three different calcs.

Be sure to back up or archive important data before doing this.

Posted on Oct 21, 2008

SOURCE: Can't find the % button on TI-84 plus :(

Just hit the 2ND key and the 0 (catalog key)scroll down to percentage or just divide the answer by 100.

Please rate this a fixya

Posted on Feb 13, 2009

SOURCE: I am trying to solve imaginary number equations

I am afraid you cannot use the TI8xPlus family of calculators to solve linear systems in matrix form. In this calculator, matrices must have real coefficients.

You can however separate (expand) the problem into a linear system of 4 equations in 4 unknowns and try to solve it with the calculator.

- define X = a+i*b
- Define Y=c+i*d
- Rewrite the first equation substituting a+i*b for X and c+i*d for y.
- Gather all real terms together, and all imaginary terms together on the left.
- You will have (8a-15b-8c) +i(15a+8b-8d) = 10 +0i
- This equation can be split into two equations by saying that

- the real part pf the left member is equal to the real part of the right member, this gives 8a-15b-8c=10, and
- the imaginary part of the left member is equal to the imaginary part of the right member, this gives 15a+8b-8d=0

If I did not make mistakes during the expansions and the gathering of terms you should get the following equation

-(8a+8c+10d) +i*(-8b+10c-8d) =0+i*0 from which you extract an equation for the real parts, -(8a+8c+10d)=0 and another for the imaginagy parts i*(-8b+10c-8d) =i*0

If I did not make mistakes (you should be able to find them, if any) your system of two linear equations with complex coefficents has been converted to a system of 4 linear equations with real coefficients.

8a-15b-8c=10

15a+8b-8d=0

8a+8c+10d=0

-8b+10c-8d =0

Now, you can in theory solve this system with help of the calculator, to find a, b, c, and d. When these are found, you can reconstruct the X and Y solutions.

Now get to work: Ascertain that my extracted equations are correct, then solve for a, b,c, and d, and reconstruct X and Y.

I am no seer, but my hunch is that this system is degenarate. I will not explain what that means.

Posted on Feb 11, 2010

SOURCE: I have issues turning on my TI-Nspire using TI-84 Plus SE keypad

i would say use the normal key pad or send it in to T.I to fix.

Posted on Mar 12, 2010

Let's do some examples.

4 x 6 = 24 (four groups with six in each group)

4 x 6/10 = 4/1 x 6/10 = 24/10 = 2.4 (multiply the numerators and multiply the divisors)

Good luck,

Paul

4 x 6 = 24 (four groups with six in each group)

4 x 6/10 = 4/1 x 6/10 = 24/10 = 2.4 (multiply the numerators and multiply the divisors)

Good luck,

Paul

Jan 01, 2017 | Office Equipment & Supplies

Fortunately, we can tweak the Eratosthenes sieve to count the number of divisors more efficiently and elegantly. And you will see that this technique works not only for number of divisors, but also for generating sum of divisors, totient function, biggest prime divisor, basically all functions that have to do with divisors!

Jan 26, 2014 | Juicers

a prime number is a number that can only be multiplied by itself and 1 - example 3 can only be multiplied by itself and 1.

Oct 28, 2013 | Computers & Internet

It denotes an exponent of ten. For example, 1.1E4 means 1.1 times 10 to the 4 or 11000 (eleven thousand).

Feb 08, 2013 | Texas Instruments TI-84 Plus Silver...

I encountered this same problem with the TI-84. Turns out you have to put your P (Percentage) as out of one hundred. For example. With my problem I had;

Trails: 13

P: 53/100

X Value: L1 (List 1)

And then it posted my probabilities to the L2 list. For some reason if you just put 53, or whatever your percentage of success in, it won't calculate.

Trails: 13

P: 53/100

X Value: L1 (List 1)

And then it posted my probabilities to the L2 list. For some reason if you just put 53, or whatever your percentage of success in, it won't calculate.

Jun 19, 2012 | Texas Instruments TI-84 Plus Calculator

There are no such buttons, You'll find the lcm (least common multiple) and gcd (greatest common divisor) functions in the MATH NUM menu. Press MATH, right-arrow, and select the desired function.

Jul 07, 2011 | Texas Instruments TI-84 Plus Silver...

The TI-84 allows only real numbers in a matrix.

You can write programs to deal with complex numbers in lists, simulating matrices. One such program is at http://www.ticalc.org/archives/files/fileinfo/250/25081.html

You can write programs to deal with complex numbers in lists, simulating matrices. One such program is at http://www.ticalc.org/archives/files/fileinfo/250/25081.html

Feb 02, 2011 | Texas Instruments TI-84 Plus Calculator

The comma is located on top of number 7 key.

See page 5 on teh user manual to learn how to operate the keyboard on a TI 84 Plus:

*TI*-*84* Plus *TI*-*84* Plus Silver Edition Guidebook

See page 5 on teh user manual to learn how to operate the keyboard on a TI 84 Plus:

Mar 16, 2009 | Texas Instruments TI-84 Plus Silver...

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