Question about Texas Instruments TI-80 Calculator

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ALGEBRA 15%=RF + [1.25 X (14% - Rf)]

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.15 - RF = 1.25x.14 - 1.25xRF
.15 + .25RF = .175
.025 = .25RF
RF = .1

Posted on Sep 30, 2009

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Angles degrees plus enter

In Run>Mat or in PRGM press the OPTN key. Pan to the next page by pressing F6>. the F5:ANGL
To enter a number in DMS use the F4: [deg '"]
Example :type in 15 deg 45 minutes 10 seconds
15 [F4] 45 [F4] 10[F4] then enter. The result is displayed in Decimal Degrees as 15.7277778
Press F5 [deg '"<==]
The number is converted to DMS.
See the screen capture.


Dec 27, 2013 | Casio Algebra FX 2.0 Calculator

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How would i solve for an expression and be able to leave it in terms of the variable, like (2a-1)(8a-5) and get the answer with the variable in it

This calculator cannot manipulate algebraic expressions. You can enter an expression and generate a table of values. You can enter an equation in one unknown and solve it. But you cannot do algebra.
You would need a calculator that has a Computer Algebra System (Algebra FX 2.0, or ClassPad 300/330). Sorry.

May 10, 2012 | Casio FX-115ES Scientific Calculator

1 Answer

How do I factor

Factoring is one of the hardest problems of elementary algebra. Not all calculators are designed to handle it. To be able to factor on a calculator, the calculator must have a COMPUTER ALGEBRA SYSTEM. Some expensive calculators have that feature. Most calculators (scientific ones) do not have a CAS.
Consult an elementary (beginning) algebra texbook to read on and understand factoring. For homework it is more efficient to use standard techniques or a combination of techniques to factor polynomials.

Jan 11, 2012 | Casio Calculators

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How i can find eigenvalue whit algebra calculator

In answering your other question I did make a mistake: I looked at the wrong version of the manual. The Algebra FX 2 Plus does solve for eigenvalues. Under the CAS. Here is a screen capture to help you.


Jun 30, 2011 | Casio Algebra FX 2.0 Calculator

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En mi calculadora casio algebra fx 2.0 plus me sale error data 40. quisiera saber como lo soluciono

I checked the manual for the ALGEBRA FX2.0 PLUS looking for that type of error. It is not listed. Maybe you are talking about another calculator?
Here is the link to the appendix of the manual. Part1 lists the error messages.
You can always try to reset the calculator by pressing the RESET button at the back, or use the menu icon System or Memory.

May 27, 2011 | Casio Algebra FX 2.0 Calculator

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How to do matrix with variables?

If I understand correctly you want to perform matrix calculations on matrices the coefficients of which may be numbers and/or letters (variables, parameters). While you can calculate on numerical matrices, you cannot do so with matrices with non numerical coefficients. this calculator does not know symbolic algebra.

For symbolic algebra and calculus you would need a calculator with a CAS, Computer Algebra System. Exemples of those are the TI89, Ti92, Ti Voyage 200 PLT, The Casio FX-Algebra, the Casio ClassPad, HP48S/X/G/GX/G+, HP49G/49G+, HP50G, HP48GII etc.

Hope it Helps.
Thanks for using FixYa and for rating this solution.

Dec 02, 2009 | Texas Instruments TI-83 Plus Calculator

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How can I calculate a large factorial using casio algebra fx 2.0, without manually inputing all values?

There is a function to calculate them for you.

In CAS, or Algebra or Tutor Modes, use the x! option
In Run-Math, press [OPTN][F6] to pan right, then [F1] to access the (PROB) menu then enter option number corresponding to x!
The way it works is as follows
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Hope it helps.

Nov 12, 2009 | Casio Algebra FX 2.0 Calculator

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Yes we can do algebra on thre TI83 Plus calculator, a lot of algebra, statistics, probabilities, graphing functions several ways, calculus(integral, differential). A lot.
If you have a particular question post it and someone will be happy to help you, and show you how to do it on your calculator.

Good luck.

Jul 20, 2009 | Texas Instruments TI-83 Plus Calculator

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How can I calculate rank of a matrix using algebra FX 2.0PLUS?

The Algebra FX 2.0 does matrix operations. The relevant chapters in the manual are Chapter 2 and Chapter 8.Here is the link.

Hope it helps.

Jul 03, 2009 | Casio Algebra FX 2.0 Calculator

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