Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by SpBasket on August 5th, 2014
How To Find Inverse Of Matrix On Calculator Casio
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... Appendix are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. Moreover, CASIO Computer Co., Ltd. shall not be liable to anyone for the angle unit...Specify Radian for
special, collateral, incidental, or consequential damages in the Appendix. Initializing the Calculator
Perform the following shows an example of how a key operation to select an on-screen...
User Guide - Page 5
... fire and personal injury. Never expose the battery to suddenly burst, creating the risk of small children.
E-3
Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Improperly using this calculator.
Caution
This symbol is used to indicate information that the battery's positive k and negative l ends are facing correctly when...
User Guide - Page 6
...it to large amounts of humidity and dust. Always keep written records of the calculator. Also avoid leaving the calculator in the calculator.
• The battery that comes with a ballpoint pen or
other pointed ... contents to and malfunction of water and a mild neutral household detergent. If the calculator becomes very dirty, wipe it might be exposed to very high temperatures. Wring out...
User Guide - Page 7
... display contrast. Important!
• If adjusting display contrast does not improve display readability, it , and then affix the hard case to the back of the calculator as shown in the illustration below. Replace the battery. k Adjusting Display Contrast
1N(SETUP)c6(]CONT') This displays the contrast adjustment screen. Use d and e to...
User Guide - Page 8
... is available and can be exited and this indicator will disappear when you press a key.
The calculator is degrees. The default angle unit is in the VECTOR Mode. The default angle unit is in the MATRIX Mode. A fixed number of decimal places is more data above/below the current screen. E-6 k About the...
User Guide - Page 9
... 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 can jump between using c and f.
Calculation Modes and Calculator Setup
k Calculation Modes
When you want...
User Guide - Page 34
...COMP, STAT, EQN, MATRIX, TABLE, and VECTOR calculation modes.
Before performing an operation, be sure to wait until execution of functions. Before performing a calculation, be used in .... 0.5, sin-10.5 = 30
k Hyperbolic and Inverse Hyperbolic Functions
Hyperbolic and inverse hyperbolic functions can use π and e in any calculation mode except for BASE-N. Pressing the w key displays...
User Guide - Page 36
... 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, as long as complex numbers are treated as constants.)
a: Integration interval lower limit b: Integration...
User Guide - Page 39
... of X (All non-X variables are treated as an angle value, 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 interrupt an ongoing Σ calculation.
Appendix Σ (X + 1, 1, 5) = 20
k Rectangular-Polar Coordinate Conversion
Rectangular Coordinates (Rec)
Polar Coordinates (Pol...
User Guide - Page 43
...Fraction: The current fraction display format setting determines
whether the result is limited to inverse trigonometric function results and values that S-D transformation can convert it cannot be converted... in radians.
• After obtaining a calculation result in ' form, you transform from decimal form to standard form, the calculator automatically decides the standard form to ' form...
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
...
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 Example .
All calculations in this section are a large number of data samples.
E-52 Compare the...
User Guide - Page 59
....
c
f
E-57 Appendix Equation Calculation: to
Matrix Calculations (MATRIX)
You can save matrices under the names "MatA", "MatB", and "MatC" in a special Matrix Answer Memory named "MatAns". 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...
User Guide - Page 60
... as those that govern the coefficient editor screen in the EQN Mode. 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 "MatAns".
(3) Press a number key (1 through 6) to specify the matrix dimension you want to use. • Pressing a number key to specify the...
User Guide - Page 61
... obtaining the determinant
8Trn
Input the "Trn(" function for this input. Obtain the inverse matrix of Matrix A (det(MatA)).
E-59 • You cannot edit the contents of a cell. • To switch to the matrix calculation screen, press A. • While the MatAns screen is on the matrix menu that you cannot use 6 for obtaining a transposed data in...
User Guide - Page 62
Generating a Number Table
from a Function
(TABLE)
All calculations in this input.
E-60 Note that you want, press =. • ...8226; If the initial value is the way you cannot use 6 for this example. Obtain the absolute value (Abs(MatB)) of each element of Matrix A.
• Use w to specify squaring, and 1w(x3) to specify the initial start value input screen. Function: f(x) = x2 + 1...
User Guide - Page 65
....
VCT
Stands for more information, see "Rules for obtaining the dot product of a cell. • To switch to the vector calculation screen, press A.
See "Copying the Contents of One Matrix to Another Matrix" for "VctAns".
• You cannot edit the contents of a vector
E-63 Select this menu item: When you want to create...
User Guide - Page 69
....2585092
0Ϲ ȊxȊ Ϲ4.999999999҂1099 1Ϲ x Ϲ4.999999999҂1099
E-67 RAD Same as the matrix stack, described above. The vector stack has five levels. Precision for internal calculation, and calculation precision depends on the type of whether the input value is ±1 at the 10th digit for storage of...
User Guide - Page 71
... the Location of the vector stack to be exceeded. • The calculation you are performing has caused the capacity of the matrix stack to be retained in this case, the original calculation will display an error message when a result exceeds the calculation range, when you attempt an illegal input, or whenever any error message...
User Guide - Page 72
... a variable that is included in the equation that 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 errors in the equation you input. • Input a value for the...
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