Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by LGNEEDZamin on June 30th, 2014
How To Find The Product Of Matrices Using Calculator 991es
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... direction, as shown in the illustration nearby.
Note that this product and the items that come with it . Moreover, CASIO Computer... Using the Separate Appendix
Whenever you see "Using Calculator Memory". • The following procedure when you want to initialize the calculator and return the calculation mode and setup to their initial default settings. Initializing the Calculator...
User Guide - Page 5
... children and accidentally swallowed.
• Keep batteries out of the reach of battery specified for later reference. Keep this calculator. Safety Precautions
Be sure to read the following safety precautions before using a battery can cause it to leak and damage nearby items, and can create the risk of fire and personal injury...
User Guide - Page 6
... and malfunction of your trousers or other tight-fitting clothing where it might be splashed by water or exposed to temperature extremes. Never use and storage of the calculator in direct sunlight, near a window, near a heater or anywhere else it might be exposed to clean the exterior of all excess liquid before...
User Guide - Page 7
Replace the battery. k Turning Power On and Off
• Press O to turn on the display. Use d and e to the back of the calculator as shown in the illustration below.
Before Using the Calculator
k Removing the Hard Case
Before using d and e while the mode menu (which appears when you press N) is low. After the setting is the...
User Guide - Page 9
... 1N(SETUP) displays the setup menu, which you can jump between using c and f.
Calculation Modes and Calculator Setup
k Calculation Modes
When you want to perform this type of operation: General calculations Complex number calculations Statistical and regression calculations Calculations involving specific number systems (binary, octal, decimal, hexadecimal) Equation solution Matrix...
User Guide - Page 10
...Digits
To specify this: Number of Decimal Places Number of significant digits for displayed calculation results.
Calculation results are written on paper.
• Linear format causes fractions and other expressions...
Specifying the Default Angle Unit
To specify this as they are rounded off to use "]CONT'".
Specifying the Input/Output Format
For this input/output format: Math Linear...
User Guide - Page 11
...key operation: number format:
Rectangular Coordinates 1Nc3(CMPLX)1(a+bi)
Polar Coordinates
1Nc3(CMPLX)2(r∠θ)
Specifying the Statistical Display Format
Use the following procedure to turn display of the frequency (FREQ) column of the two available settings (Norm1, Norm2) determines...is always a dot ( ).
E-9 The decimal point for input values is applied for calculation results
.
User Guide - Page 12
... Σ(, P(, Q(, R(, arg(, Conjg(, Not(, Neg(, det(, Trn(, Rnd(
E-10 Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you input calculation expressions just as shown below.
19(CLR)1(Setup)=(Yes)
This setting: Calculation Mode Input/Output Format Angle Unit Display Digits Fraction Display Format Complex Number Format Statistical...
User Guide - Page 13
...single expression. At this time, the ] indicator appears to use the e key to 14 characters at the end of a calculation, immediately before the = key is different if you can...
s30)=
Pressing s inputs "sin(".
• Note that requires two key operations to input (like 1s(sin-1)) also uses only one byte. For details, see "Inputting with parenthesis: 2 × sin(30), 2 × '(3), etc...
User Guide - Page 14
... insert mode, the displayed characters shift to the left to the overwrite mode when you input replaces the character at a convenient point and
calculate the result.
You can only use depends on the display screen. See "Incorporating a Value into a Function" for Linear format input is selected does not switch to let you...
User Guide - Page 26
... and results. Modes that calculation history memory contents are using Linear format, you are performing causes calculation history memory to back-step through calculation history memory contents.
Replay Function While a calculation result is deleted automatically to edit the expression you input and execute, and its result. Appendix
E-24
Using Calculation History Memory and Replay...
User Guide - Page 27
... 1m(M -), t, 1t(STO). Variables
Six variables named A, B, C, D, X, and Y can be cleared from independent memory.
If you execute a calculation using any one . Using Calculator Memory
Memory Name
Description
Answer Memory Stores the last calculation result obtained. The "M" display indicator indicates data in Answer Memory. k Answer Memory (Ans)
Answer Memory Overview
• Answer...
User Guide - Page 52
... X-data Sum of the X-data Sum of squares of the Y-data Sum of the Y-data Sum of products of the X-data and Y-data Sum of cubes of the X-data Sum of (X-data squares × ... Y-data
E-50
See Appendix for information about the calculation
formula used for each command. Commands when Linear Regression Calculation (A+BX) Is Selected With linear regression, regression is selected as the statistical...
User Guide - Page 56
...calculation or logical operation command, press 13(BASE) to display page one of the BASE menu, and then press the number key that corresponds to the base you want to input this:
1(and)
Logical operator "and" (logical product... Mode lets you input here is decimal number base.
Calculate 78 + 18 in octal.
Transform the result of 3 using a different base. Convert the decimal value 3010 to...
User Guide - Page 59
...or cubic equation, you can save matrices under the names "MatA", "MatB", and "MatC" in matrix memory. Appendix Equation Calculation: to
Matrix Calculations (MATRIX)
You can use f and c to switch the ...in accordance with the input/ output format and complex number display format settings of the calculator's setup screen.
• Note that the matrix selection screen also appears whenever you...
User Guide - Page 61
... A (det(MatA)).
MatA + MatB (Adding Two Matrices) MatA × MatB, MatB × MatA - k Matrix Menu Items
The following examples use the screen contents in Examples and (MatA, MatB, ...of a cell. • To switch to Perform a Series of Calculations". For more information, see "Using Answer Memory to the matrix calculation screen, press A. • While the MatAns screen is on the...
User Guide - Page 65
...VctAns"
7Dot
Input the " • " command for obtaining the dot product of the last vector calculation. Select this menu item: When you want to create another vector in vector... To switch to the vector calculation screen, press A. k Performing Vector Calculations
To perform a vector calculation, display the vector calculation screen by pressing the A key. (4) Use the vector editor screen to...
User Guide - Page 66
... temperature; 39: Newtonian constant of VctC. VctA + VctB (Vector Addition) 3 × VctA (Vector Scalar Multiplication)
VctB - 3 × VctA (Calculation example using VctAns) VctA • VctB (Vector Dot Product) VctA × VctB (Vector Cross Product) Obtain the absolute values of gravitation; 40: standard atmosphere
E-64 This displays
the scientific constant menu. Determine the...
User Guide - Page 68
...different calculation results. Example: 1/2i= 1/(2i)=
1 ÷ 2i = 1 i
2 1 ÷ (2i) = -
1
i
2
k Stack Limitations
This calculator uses memory areas called stacks to be performed first, so the use ... ab/c
4. Permutations, combinations: nPr, nCr Complex polar form symbol: ∠
7. Dot product: • (Dot) 8. Multiplication and division: ×, ÷
Multiplication where sign is...
User Guide - Page 72
.... • Specify a variable that is included in the equation you are trying to use in the equation that you input. • Input a value for the matrices or vectors to the expected solution
and try again.
Note that type of calculation.
• Action • Specify the dimension of the matrix or vector and then...
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