Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by marbi on February 9th, 2014
How To Calculate Standard Deviation In Fx991es Plus
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
...also clears all data currently in this manual, it means you want to initialize the calculator and return the calculation mode and setup to their initial default settings. k Using the Separate Appendix
Whenever you ...• The cursor key is not part of the actual key operation you see "Using Calculator Memory". Specify the angle unit in accordance with the marks in this User's Guide and ...
User Guide - Page 5
...can result in
this manual handy for this calculator in personal injury or material damage if ignored.
Battery
• After removing the battery from ...get into the
calculator. • Use only the type of battery specified for later reference. Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Improperly using this calculator. Never expose ...
User Guide - Page 6
... and can cause slow display response, total failure of the display, and shortening of the calculator. E-4 Very low temperatures can damage the case. Such conditions can leak, causing damage to.... Always keep written records of all excess liquid before using the calculator for the first time.
• Even if the calculator is operating normally, replace the battery at least once every three...
User Guide - Page 7
... is the way you press N) is low.
k Turning Power On and Off
• Press O to turn on the display.
Use d and e to turn off the calculator. Important!
• If adjusting display contrast does not improve display readability, it , and then affix the hard case to the back of the...
User Guide - Page 8
... keypad will unshift and this indicator will disappear when you press a key. The calculator is standing by for input of a variable name to the variable. The display...of significant digits is selected as the input/output format.
There is radians. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT ...
User Guide - Page 9
... mode:
COMP CMPLX
STAT
BASE-N
EQN MATRIX
TABLE
VECTOR
(2) Press the number key that corresponds to the mode you can use to control how the calculations are executed and displayed. The setup menu has two screens, which you want to select. • To select the CMPLX Mode, for example, press 2. c
f
E-7 k Configuring...
User Guide - Page 10
... this: Number of Decimal Places Number of Significant Digits
Exponential Display Range
Perform this key operation: 1N6(Fix)0-9 1N7(Sci)0-9 1N8(Norm)1(Norm1) or 2(Norm2)
Calculation Result Display Examples • Fix: The value you specify (from 1 to use "]CONT'".
• See "Adjusting Display Contrast" for information about how to 10) controls...
User Guide - Page 11
... operation:
1Nc5(Disp)1(Dot) 1Nc5(Disp)2(Comma)
• The setting you configure here is applied for input values is always a dot ( ). E-9 The decimal point for calculation results
.
• Norm: Selecting one of the STAT Mode STAT editor screen on or off.
User Guide - Page 12
... Not(, Neg(, det(, Trn(, Rnd(
E-10 Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you need to input the argument and the closing parenthesis ()).
k Initializing the Calculation Mode and Other Settings
Performing the following procedure initializes the calculation mode and other setup settings as they are written.Then simply...
User Guide - Page 13
... an open parentheses (( ): 2 × (5 + 4), etc. • Before a function with Math Format". This will cause the ' indicator to appear to 14 characters at the end of a calculation, immediately before the = key is pressed. Inputting the 15th character causes the expression to shift to input (like 1s(sin-1)) also uses only one byte...
User Guide - Page 14
...how to the overwrite mode when you input replaces the character at a convenient point and
calculate the result. The cursor is a horizontal flashing line ( ) when the overwrite mode is selected.... • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to correct an expression as a straight ...
User Guide - Page 42
... right.
E-40 Transforming Displayed Values
You can use S-D transformation to transform between its decimal (D) form and its standard (S) form (fraction, π).
k Using S-D Transformation
You can be used to transform a displayed decimal calculation result to one of the following equation are
equal:
Σ e
∞
=
n = 0
1 n! k Using Engineering Notation
A simple key operation...
User Guide - Page 43
... f key.
Examples of S-D Transformation Note that are normally expressed in radians.
• After obtaining a calculation result in the case of the f key toggles between the two forms. f
f
Appendix π Fraction... the original calculation result is true only in ' form, you transform from decimal form to standard form, the calculator automatically decides the standard form to perform.
User Guide - Page 49
... the STAT Menu
While the STAT editor screen or STAT calculation screen is displayed switches to display the STAT menu. Deleting...calculating sums Display the Var sub-menu of commands for calculating the mean, standard deviation, etc. Note
• Note that you input with the STAT editor screen.
k STAT Calculation Screen
The STAT calculation screen is for performing statistical calculations...
User Guide - Page 50
... of the sample data Population standard deviation Sample standard deviation
MinMax Sub-menu (11(STAT)6(MinMax))
Select this menu item: 1minX 2maxX
When you want to obtain this :
7Reg
Display the Reg sub-menu of commands for each command. See Appendix for information about the calculation
formula used for regression calculations • For details see "Distr...
User Guide - Page 51
... the following data:
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
(FREQ: ON)
Edit the data to the following, using the mean , and population
standard deviation.
Calculate sum of squares of the sample data and sum of standard normal
distribution. Performing standard normal distribution approximation on the STAT editor
screen. Distribution probability that is a value less than the
normalized variate...
User Guide - Page 52
... Population standard deviation of the Y-data Sample standard deviation of the Y-data
MinMax Sub-menu (11(STAT)6(MinMax))
Select this :
1minX
Minimum value of the X-data
2maxX Maximum value of the X-data
3minY
Minimum value of the Y-data
4maxY Maximum value of the Y-data
E-50 y = A + BX
The following model equation.
Commands when Linear Regression Calculation...
User Guide - Page 53
... used for linear regression calculations. Reg Sub-menu (11(STAT)7(Reg))
Select this menu item: 1A 2B
3C
4m1 5m2 6n
When you want to obtain this :
1A
Regression coefficient constant term A
2B
Regression coefficient B
3r 4m 5n
Correlation coefficient r Estimated value of x Estimated value of samples, mean, standard deviation), and MinMax sub...
User Guide - Page 66
...vectors perpendicular to both A and B = (A × B) A × B
Scientific Constants
Your calculator comes with 40 built-in constants that corresponds to VctB =
(3, 4). • The following are commonly used in... constant; 33: magnetic constant; 34: magnetic flux quantum; 35: standard acceleration of gravity; 36: conductance quantum; 37: characteristic impedance of vacuum...
User Guide - Page 67
... menu. Technical Information
k Calculation Priority Sequence
The calculator performs calculations according to a calculation priority sequence. • Basically, calculations are based on the "...the metric conversion commands and conversion formulas. • Conversion formula data is based on ISO Standards (1992) and CODATA Recommended Values (1998). Function with parentheses:
Pol(, Rec(
∫...
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