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Where is the absolute value button? - Casio fx-300ES Calculator

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Near the top left corner of the keyboard, below the SHIFT key. It's marked "Abs".

Posted on Nov 05, 2010


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I don't know how to graph absolute value functions on Casio fx-9750GII.

When it is time for you to put an expression in absolute value, press the OPTN key, then F5/Num, then F1/Abs. Open parenthesis, input expression, then close parenthesis.
For fractions, use the key with the symbol a b/c.
A little friendly advice, please do invest some of your time reading the manual. Most Casio graphing calculators work the same way. What you learn on one, works on another.

Aug 19, 2017 | Casio Office Equipment & Supplies

1 Answer

How can I find the mean absolute deviation?

Mean absolute deviation.
Let's break it down into its components.
Mean - Average
Absolute - absolute value - sign doesn't matter - if negative, make positive
Deviation - difference from the mean

Let's do an example. Population 3 7 4 2. Total 16. Mean (Average) 16/4 = 4.

3 - 4 = -1 absolute value 1
7 - 4 = 3
4 - 4 = 0
2 - 4 = -2 absolute value 2

Sum of these deviations 1 + 3 + 0 + 2 = 6
Mean (average) of these deviations is 6 / 4 = 1.5.

Good luck,


Apr 05, 2016 | Texas Instruments TI-30Xa Scientific...

2 Answers

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

How do i solve equations involving absolute value

You must consider two cases.
1st case: What is inside the absolute value symbols is supposed positive. Remove the absolute value symbols and proceed to solve.
2nd case: What is inside the absolute value symbols is supposed negative. Enclose the contents of the absolute value within parentheses, put a negative sign in front the left parenthesis, and proceed to solve.
Gather the solutions obtained in the two cases. Use a Union symbol for the solution set.

Oct 08, 2014 | Office Equipment & Supplies

1 Answer

What does the Abs button on my scientific calculator

It calculates the absolute value. The absolute value of a number is the number if it's positive, otherwise it's the negative of the number.

Oct 30, 2013 | Casio FX-115ES Scientific Calculator

2 Answers

How do you solve for an inequality with an absolute value using functions on calculator? (example |x-1|<9

Sorry, the calculator cannot solve such ualities (nothing to do with the absolute function).
To find the solution set you need to study the two cases for the absolute value.
Case 1
If x-1> 0, the absolute value is x-1. The inequality takes the form x-1<9. You can solve it as x<10

Case 2
If x-1<0, then the absolute value is 1-x. The inequality becomes 1-x<9. The solution for this inequality is x>-8

Combine the two domains to find the intersection


Sep 13, 2011 | Casio FX9750GII Graphic Calculator

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I try to graph an absolute value on my Ti 89 and I put the inequality in right but when I go to graph it my calculator says undefined variable.

If you want to graph the absolute value of a function, feed the function to the absolute value ie graph y= abs(f(x)). The calculator will take care of it. See screen captures where I draw the function y1=x^3-5x^2-3 and y2='x^3-5x^2-3'. On the first graph the function is represented and on the second the function and its absolute value.




The calculator knows how to calculate the absolute value of an expression. The name of the command is abs(


May 08, 2011 | Texas Instruments TI-89 Calculator

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I do not know how to graph using absolute values on my casio fx-9750GII. Is absolute value even possible on this calculator because i cant find it anywhere on the keys or in menus (unless im not looking in...

Hey it is. Okay, so start with a equation: say, y = -(1 |x|). Now type y = -(1 , then press the [OPTN] button, next to the shift. Next press the [NUM] button or F5. The first menu button should be Abs or absolute value. When your done it should look like this. y = -(1 Abs (x)) then graph it.

Aug 18, 2010 | Casio FX9750GII Graphic Calculator

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Absolutes on FX - 115ES

The absolute value button is "SHIFT", "Abs" (located on the "hyp" key)

Apr 07, 2009 | Casio FX-115ES Scientific Calculator

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