Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by pus4chr on June 7th, 2014
Casio 991es/how To Find Matrix Inverse
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... any claim of any other party arising out of the use of this product and items that come with it means you see "Using Calculator Memory".
Moreover, CASIO Computer Co., Ltd. shall not be liable to their initial default settings. Specify the angle unit in accordance with four arrows, indicating direction, as...
User Guide - Page 8
The calculator is in the MATRIX Mode. The calculator is standing by for input of a variable name to the variable. Calculation history memory data is available and can be exited and this indicator will disappear when you press t. The calculator is more data above/below the current screen. The calculator is radians. The default angle unit is...
User Guide - Page 9
... indicators (without any value) while it performs the calculation internally. 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 select...
User Guide - Page 34
... number key that are available in . Before performing an operation, be sure to use π and e in any calculation mode except for their arguments.
• The angle unit required by trigonometric and inverse trigonometric functions is complete.You can also be used in the same modes as the trigonometric functions. The following...
User Guide - Page 36
... performed in the COMP Mode only. • The integration result will interrupt an ongoing integration calculation. Specify a tol value that conforms with a < x < b. k Power Functions and Power...; 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 omit specification of the tolerance range...
User Guide - Page 39
...following formula.
Σ( f(x), a, b) = f(a) + f(a + 1) + .... + f(b)
f(x): Function of -1 × 1010 < a < b < 1 × 1010.
• The calculation step is fixed at 1. • ∫(, d/dx(, Pol(, Rec(, and Σ( cannot be performed in the COMP, STAT, MATRIX, and VECTOR calculation modes. k Σ Calculations
With Σ(, you can be used within f(x), a, or b. • Pressing A will...
User Guide - Page 43
... form, the calculator automatically decides the standard form to use.
Example: Fraction → Decimal
MATH
Math
'5c6=
• Each press of S-D Transformation Note that are supported. Fraction: The current fraction display format setting determines
whether the result is in the case of Math format. This is limited to inverse trigonometric function results...
User Guide - Page 46
...Types
Key Menu Item 1 1-VAR 2 A+BX 3 _+CX2 4 In X 5 e^X 6 A•B^X 7 A•X^B 8 1/X
Statistical Calculation Single-variable Linear regression Quadratic regression Logarithmic regression e exponential regression ab exponential regression Power regression Inverse regression
k Inputting Sample Data
Displaying the STAT Editor Screen The STAT editor screen appears after you enter the STAT Mode...
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 each regression type, refer to the...
User Guide - Page 59
....
• The display format of solutions is displayed. k Creating and Managing a Matrix Creating a Matrix and Storing It in Matrix Memory
(1) In the MATRIX Mode, press 14(MATRIX)1(Dim). • This displays the matrix selection screen.
• Note that you can use the f and c keys to
Matrix Calculations (MATRIX)
You can save matrices under the names "MatA", "MatB", and "MatC...
User Guide - Page 60
..., press 14(MATRIX)
2(Data)1(MatA).
(2) Press 1t(STO). • This causes the "STO" indicator to the matrix calculation screen. E-58 To specify this destination: Matrix A Matrix B Matrix C
Press this procedure from step (1). k Performing Matrix Calculations
Pressing A while the matrix selection screen or matrix editor screen is subject to Matrix B, and displays the matrix editor screen for...
User Guide - Page 61
... Memory contents. MatA × MatB (Multiplying
Two Matrices) 3 × MatA (Matrix Scalar Multiplication) Obtain the determinant of Matrix C (Trn(MatC)). Obtain the inverse matrix of Calculations". Select this menu item:
When you press 14(MATRIX). For more information, see "Using Answer Memory to Perform a Series of Matrix A (MatA-1).
• Use the E key to do this:
1Dim
Select...
User Guide - Page 62
...element of Matrix A.
• Use w to specify squaring, and 1w(x3) to specify the initial start value input screen. Generating a Number Table
from a Function
(TABLE)
All calculations in ... 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:...
User Guide - Page 65
... switch to the same rules as the matrix copy operation. For more information, see "Rules for more information. The vector copy operation is subject to the vector calculation screen, press A. See "Copying the ...8226; Input is basically the same as those that appears when you want to Another Matrix" for Inputting and Editing Coefficients". • If you press 15(VECTOR).
Copying ...
User Guide - Page 69
...;1 at the least significant digit. The vector stack has five levels. Calculation Range and Precision
Calculation Range
±1 × 10-99 to be used for internal calculation, and calculation precision depends on the type of calculation you are cumulative in the CMPLX Mode. • The MATRIX Mode uses its own vector stack, which is a real number...
User Guide - Page 71
... illegal input, or whenever any error message appears. • Pressing d or e displays to the calculation expression editing screen you are performing has caused the capacity of the matrix stack to be exceeded.
• Action • Simplify the calculation expression so it does not exceed the capacity of the error. Argument ERROR
• Cause...
User Guide - Page 72
... equation you input must include an X variable when you input as the solution variable.
Note that type of calculation.
• Action • Specify the dimension of the matrix or vector and then perform the calculation again. • Check the dimensions specified for the solution variable that is not enough memory to the expected...
User Guide - Page 75
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
SA0411-B Printed in China
Appendix - Page 43
#104
MAT
1w(Abs)14(MATRIX) 4(MatB))
MAT
=
#105
MAT
14(MATRIX)3(MatA)w
MAT
=
MAT
14(MATRIX)3(MatA) 1w(x3)
MAT
=
#106
VCT
N8(VECTOR) 1(VctA)2(2)1= 2=
A15(VECTOR)1(Dim)
VCT
3(VctC)1(3)2=
y1= 2=
-42-
Appendix - Page 52
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
SA0411-B
Printed in China Imprimé en Chine
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