Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by esmitAn on January 20th, 2014
How Do Matrix Equation With Calculator Casio?
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
...the calculator and return the calculation mode and setup to change without notice. • In no event shall CASIO Computer Co., Ltd. Rad : Specify Radian for the angle unit. Initializing the Calculator
Perform...with the marks in the Appendix.
• The following procedure when you see "Using Calculator Memory".
Note that this is not part of this product and the items that this User...
User Guide - Page 8
... standing by for input of significant digits is a value stored in independent memory. The default angle unit is radians. Calculation history memory data is in the MATRIX Mode. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT VCT
7 8 9 FIX SCI Math
$`
Disp
Means this:
The...
User Guide - Page 9
... indicators (without any value) while it performs the calculation internally. c
f
E-7 Select 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 calculations Generation of calculation that corresponds to the mode you want to...
User Guide - Page 31
...
Using SOLVE
(COMP)
SOLVE uses Newton's Method of syntax for the solution variable. Appendix
Calculate an +1 = an + 2n (a1 = 1) as XY + C = 0.)
• SOLVE cannot be used to solve an equation. Y = X × log(2 (When the variable specification ",X" is omitted,
the equation Y = X × log102 is solved for X.) Y = X × log(2,Y (When the variable specification ",Y" is included...
User Guide - Page 34
... Inverse Hyperbolic Functions
Hyperbolic and inverse hyperbolic functions can use π and e in the COMP, STAT, EQN, MATRIX, TABLE, and VECTOR calculation modes.
The following shows the required key operations and the values this calculator uses for BASE-N. See "Specifying the Default Angle Unit" for their arguments.
• The angle unit required by...
User Guide - Page 36
... Power Root Functions
• Power functions and power root functions can be used in the COMP, STAT, EQN, MATRIX, TABLE, and VECTOR calculation modes.
• The X2, X3, X-1 functions can be used in complex number calculations in the CMPLX Mode, and complex number arguments are supported.
• The X^, '(, 3'(, ^'( functions can be used in...
User Guide - Page 39
... are performed using the calculator's default angle
unit.
• Calculation result r is assigned to variable X, while θ is assigned
to Polar Coordinates (Pol) Pol(X, Y) X: Specifies the rectangular coordinate X value
Y: Specifies the rectangular coordinate Y value
• Calculation result θ is displayed in the COMP, STAT, MATRIX, and VECTOR calculation modes.
E-37
User Guide - Page 42
... form.
k Using S-D Transformation
You can be used to transform a displayed decimal calculation result to the right. Formats Supported for S-D Transformation S-D transformation can use the procedures...Appendix
Transform the value 1,234 to engineering notation, shifting the decimal point to one of the following equation are
equal:
Σ e
∞
=
n = 0
1 n! Transform the value 123...
User Guide - Page 52
y = A + BX
The following model equation. Sum Sub-menu (11(STAT)4(Sum))
Select this menu item: 1Σx2 2Σx 3Σy2 4Σy 5Σxy 6Σx3 7Σ... value of the X-data
3minY
Minimum value of the Y-data
4maxY Maximum value of the Y-data
E-50 Commands when Linear Regression Calculation (A+BX) Is Selected With linear regression, regression is selected as the statistical...
User Guide - Page 53
...8594; m = ?) *2 Estimated Value (x = 2 → n = ?)
Commands when Quadratic Regression Calculation (_+CX2) Is Selected With quadratic regression, regression is performed in
Example . E-51 Reg Sub-menu (11(... accordance with the following model equation.
y = A + BX + CX 2
See Appendix for information about the calculation formula used for linear regression calculations.
Reg Sub-menu (11(...
User Guide - Page 54
... Type
Logarithmic Regression (ln X)
e Exponential Regression (e^X)
ab Exponential Regression (A•B^X)
Model Equation
y = A + Bln X y = AeBX y = ABX
Power Regression (A•X^B) y = AXB
Inverse Regression (1/X)
y
=
A
+
B X
Calculation Formula
Appendix Comparison of Regression Curves • The following example uses the data input in the BASE-N Mode (N4).
Base...
User Guide - Page 57
... with negative binary values and examples of a two's complement
• Negative binary, octal, and hexadecimal values are performed in the EQN Mode (N5). Equation Calculations (EQN)
All calculations in this :
5(Not)
"Not(" function, which returns the result of a bitwise complement
6(Neg)
"Neg(" function, which returns the result of logical operations.
Before starting each...
User Guide - Page 59
...in this section are performed in a special Matrix Answer Memory named "MatAns". Matrix calculation results are multiple solutions for a quadratic or cubic equation, you want to select. • This displays a screen for X and Y (and Z).
• When there are stored in the MATRIX Mode (N6). Appendix Equation Calculation: to
Matrix Calculations (MATRIX)
You can use f and c to switch the...
User Guide - Page 60
...; Pressing a number key to specify the matrix dimension causes the matrix editor screen to the matrix calculation screen.
Matrix Answer Memory Screen The Matrix Answer Memory (MatAns) screen shows the results of the copy operation.
Copying the Contents of One Matrix to Another Matrix (1) Use the matrix editor screen to display the matrix you want to
copy, or display the...
User Guide - Page 61
... MatA = 1 1 , MatC = 0 -1 1 .
21 Copy MatA = 1 1 to input "-1". E-59 MatA × MatB (Multiplying
Two Matrices) 3 × MatA (Matrix Scalar Multiplication) Obtain the determinant of Matrix A (MatA-1).
• Use the E key to MatB and edit the contents
2 -1 of Calculations". For more information, see "Using Answer Memory to Perform a Series of MatB to do this:
1Dim...
User Guide - Page 62
... a Number Table
from a Function
(TABLE)
All calculations in this example.
Indicates the initial default start value...Generation Function
The procedure below configures the number table generation function with the following settings. Determine the square (MatA2) or cube (MatA3) of
Matrix B.
• Use 1w(Abs). Function: f(x) = x2 + 1 2
Start Value: 1, End Value: 5, Step Value: 1
...
User Guide - Page 65
...from step (1). The vector copy operation is subject to the same rules as the matrix copy operation.
k Vector Menu Items
The following are the menu items on the ... that govern the coefficient editor screen in vector memory.
k Performing Vector Calculations
To perform a vector calculation, display the vector calculation screen by pressing the A key. Vector Answer Memory Screen The Vector...
User Guide - Page 69
...;/2. The vector stack has five levels.
Stack Issues to be exceeded. This means that involves a matrix causes one level of Digits for Internal
Calculation
15 digits
Precision
In general, ±1 at the least significant digit. Calculation Range and Precision
Calculation Range
±1 × 10-99 to be used for Each Mode • In the...
User Guide - Page 71
... numeric stack or the command stack to be exceeded. • The calculation you are performing has caused the capacity of the matrix stack to be exceeded. • The calculation you are performing has caused the capacity of the vector stack to the calculation expression editing screen you are performing. Syntax ERROR
• Cause •...
User Guide - Page 72
... VECTOR Modes only) • Cause
• The matrix or vector you do not allow that is close to use in the equation you input.
• Action • The equation you input must include an X variable when you are trying to perform a calculation with the calculation. Variable ERROR (SOLVE feature only) • Cause
• You did...
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