Question about Casio FX-115ES Scientific Calculator

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How to enter data for SD mode for FX-570 series

The older version for entering data is by using a semicolon.

x:f for eg 2;3 M+
4;5 M+ and so on.

The new casio calulator has no semicolon. How to enter the above data in SD mode in order to find SD and mean?

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Posted on Feb 12, 2009


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Hi i want to calculate regression in casio fx-3600pv???please help me

Here is what I gather from the picture of the faceplate.
You choose the standard deviation mode (SD) by pressing MODE 3.
You might have to choose 1-Var or 2-Var. (not sure, but 1-var for sure)
You enter a data item followed by the DATA (RUN) key. Keep entering data and pressing RUN.
While in SD MODE, if you press the 1 key you get the avregae xbar, if ****** you get the sum of squares of the entered data. Looking at the digit keys, They all have statistical markings: (A, B, and r) are for regression analysis, (7,8, 9). 2 has the population standard deviation sigma n x, 3 the sample SD, etc. That should get started. And please, experiment. There are not many variations, on th statistical theme on scientific calculators.
Hope it helps.

Nov 12, 2011 | Office Equipment & Supplies

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I am using a casio fx 9860 .... i dont know how to change the mode to linear it and how to do log when the base is not 10 .... like log 2

In Run screen press [SHIFT][MODE] to enter SetUp.
Look for the line Input Mode (it is the 1st on the SD version). Highlight the line then press the TAB at the bottom of screen that says Lin (F2 key). Press EXE when you finish with SetUp.

To use the logab( function,
1. open the Run/Mat screen.
2.Press the OPTN key.
3.Press [F4:Calc].
4. Press [F6:].
5. Press [F4:logab]

the command is displayed on the screen,.
6. Enter the base then the argument).
7. Close parenthesis if you want and
8. press EXE.
Example logab(2,8) =3

Jul 06, 2011 | Casio FX-9860G Graphic Calculator

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I am attempting to do some basic 2x2 matrix multiplication on my Casio fx-115ES calculator, however it is behaving oddly and I do not know why. I can do the following: Press Mode, Press 6 for Matrix,...

When you press MODE 6 for Matrix, you're clearing any previously entered matrices. So, you're clearing MatA when you go to enter MatB.

Instead, after entering MatA press SHIFT 4 to bring up the Matrix menu, press 1 for DIM, press 2 for MatB, press 5 for 2x2, and enter the data.

Oct 17, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How to use that standard deviation on the Casio fx-260solar calculator

  1. Calculator must be in SD mode (standard deviation mode) :Press [MODE] [.]
  2. However, if [FIX] or [SCI] appears on display you must press [MODE][9] first.
  3. Data input always starts with [SHIFT][SAC], to clear the registers of old data.
  4. Type a number and press the [DATA] key, it is the [M+] key at the bottom right of keypad.
After you finish entering the data

Press [SHIFT] [9] (sigma n-1) to get sample standard deviation
Press [SHIFT][8] (sigma n] for the population standard deviation
Press [SHIFT] [7] (xbar) for the mean
Press [SHIFT] [6] (n) for the number of data entries
Press [SHIFT] [5] (capital sigma x) for the sum of values
Press [SHIFT] [4] (capital sigma x to y) for the sum of squares of the values

For additional information you might consider taking a look at the calculator manual

Apr 27, 2010 | Casio FX-260 Calculator

2 Answers

Can i calculate calculus using fx-991ms

If you want to get an answer like 1/2X for d/dx(X^2), you will have to purchase a CAS calculator like Casio's Algebra FX-2 or Classpad. TI series calculators also have CAS.
However, you can calculate the numerical values of derivatives and integrals only.
To calculate the value of a proper integral:

  1. Press the 'ON' key;
  2. Press the Integral key b8325f5.jpg;
  3. Enter your expression (example X^2+X-3 etc);
  4. Press the 'comma' key after your expression;
  5. Input the first limit after comma, input comma again after first limit;
  6. Close brackets;
  7. Press the equals key, display may return after a while with the answer.
for eg to calculate xdx from 0 to 2, input as follows:


To calculate derivative at a point:

  1. Press Shift and then the integration key.
  2. Enter your function;
  3. Input comma;
  4. input the point at which you want to evaluate the derivative;
  5. Close bracket and press enter.
Example, to calculate d/dx X^2 at 3 input:

SHIFT+dx key X^2,3)

Display looks like this: d/dx(X^2,3).

Oct 23, 2009 | Casio FX-300MS Calculator

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How do i enter a variable such as a letter

i have fx-570 es calculator and i am trying to change it to a radiant mode

Oct 18, 2009 | Casio FX-115ES Scientific Calculator

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How do i calculate permutation in fx-82ms casio calculator


Find on the calculator the [nPr] key either (you may have to use the [2nd] or [2ndF] key) then
1. Enter the number that corresponds to n eg. 18
2. Press the [nPr] key
3. Enter the number that corresponds to r eg. 5

18[nPr]5 gives 1028160

If you calculate combinaitions use [nCr] key.

Hope it helps

Aug 11, 2009 | Casio FX-115ES Scientific Calculator

2 Answers

How to sum series

Click on the Mode button twice until you see “SD”. Select 1. This puts the calculator in Statistics Mode. image001.gif Enter the first number, 1.
image001.gif Hit the M+. (n= 1 will appear in the window)
image001.gif Enter the second number, 1.
image001.gif Hit the M+ key. (n=2 will appear in the window)
image001.gif . . . . .
image001.gif Enter the last number, 7.
image001.gif Hit the M+ key. (n=7 will appear in the window)
image001.gif Hit shift, 2. (This invokes the S-Var option.)
image001.gif Hit 1 for the sample mean. Hit Enter.
image001.gif Hit 3 for the sample standard deviation that we will use in class. Hit Enter. here you can also ffind the sum of all numbers

Jan 21, 2009 | Casio FX-300MS Calculator

3 Answers

Standard deviation

standard deviation

calculate mean of a data set:

1. Turn calc. on or press MODE SeTUP
2.Press 3 for STAT
3. Press 1 for VAR
4.Enter values for X column
5. WHen done entering press SHIFT 1
6.Press 5
7.Press 2 to calculate the mean
8.Press =

Oct 05, 2008 | Casio FX-115ES Scientific Calculator

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