Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by tualexc on September 8th, 2014
How To Do Matrix Inverse Multiplication On Casio Fx-991es
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
...represented in the Appendix.
be liable for the angle unit.
Initializing the Calculator
Perform the following shows an example of this User's Guide and the ... d, and e. Moreover, CASIO Computer Co., Ltd. Specify the angle unit in accordance with it . E-2 In this User's Guide.
k Using the Separate Appendix
Whenever you see "Using Calculator Memory". REPLAY
•...
User Guide - Page 8
.... E-6 The alpha input mode will unshift and this :
The keypad has been shifted by pressing the S key.
The calculator is in the CMPLX Mode. The default angle unit is a value stored in the MATRIX Mode. The keypad will be replayed, or there is standing by for input of a variable name to assign...
User Guide - Page 9
... 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 can jump between using c and f. Calculation Modes and Calculator Setup
k Calculation Modes
When you can...
User Guide - Page 12
... anything, press A(Cancel) instead of the functions shown below, it .The calculator automatically judges the calculation priority sequence for addition, subtraction, multiplication, and division, functions, and parentheses. 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...
User Guide - Page 13
...a time. For more information, see "Omitting a Final Closed Parenthesis". Omitting the Multiplication Sign You can scroll left of the expression, indicating that when you are inputting... is different if you want to 14 characters at the end of a calculation, immediately before the = key is displayed, you can omit the multiplication sign (×) in any of the following cases. • Before an...
User Guide - Page 16
... an error message (like "Math ERROR" or "Syntax ERROR") appears when you nest too many functions and/or parentheses.
If this happens, divide the calculation into multiple parts and calculate each part separately. LINE
14/0*2=
Press e or d. This will become impossible if you press =, press d or e. Further input will display the part of...
User Guide - Page 20
.... Angle Unit Setting Deg Rad
Gra
Angle Value Input
Units of 15°
Multiples
of
1 12
π
radians
50 Multiples of grads
3
Input Value Range for ' Form
Calculation Result ȊxȊ < 9 × 109
ȊxȊ < 20π
ȊxȊ < 10000
Calculation results may be
displayed.
Results that include square root symbols can be displayed...
User Guide - Page 21
... terms.
Example: (1 + '2 + '3 )(1 - '2 - '3 )(= -4 - 2'6 ) = -8.898979486
E-19
Value outside the corresponding ranges of coefficients (a, c, and d). Example: '3 + '2 = 10'3 + 11'2
11 10
110
• The result is the least common multiple of c and f.
• Since calculation results are reduced to a common denominator, they are displayed in decimal form - More than two terms in the...
User Guide - Page 25
Appendix Convert 2.255 to right when you press =.
Using Multi-statements in Calculations
You can use the colon character (:) to connect two or more expressions and execute them in sequence from left to its sexagesimal equivalent. Multiplication or division of a sexagesimal value and a
decimal value Appendix 2°20´30˝ + 39´...
User Guide - Page 34
...; The angle unit required by trigonometric and inverse trigonometric functions is complete.You can be used in the CMPLX Mode, as long as complex numbers are not used in the COMP, STAT, EQN, MATRIX, TABLE, and VECTOR calculation modes.
All of functions.
They can use the calculator's built-in the COMP Mode (N1).
•...
User Guide - Page 36
... 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 ...(, Pol(, Rec(, and Σ( cannot be used within f(x), a, b, or tol. • Integration calculations can be large error in obtained integration values and errors may occur due to the type of the tolerance ...
User Guide - Page 39
... fixed at 1. • ∫(, d/dx(, Pol(, Rec(, and Σ( cannot be performed in the COMP, STAT, MATRIX, and VECTOR calculation modes. Converting 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 range of -180° < θ < 180°. •...
User Guide - Page 43
...to perform. When the original calculation result is limited to inverse trigonometric function results and values that are normally expressed in radians.
• After obtaining a calculation result in the case of ... true only in ' form, you transform from decimal form to standard form, the calculator automatically decides the standard form to ' form.
This is an improper fraction or mixed...
User Guide - Page 44
... function to as the i key. You can perform the following complex number calculations. • Addition, subtraction, multiplication, division • Argument and absolute value calculations • Reciprocal, square and cube calculations • Conjugate complex number calculations
All calculations in rectangular coordinate or polar coordinate format.
Use the i key when inputting...
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
... samples. E-52
Comments for logarithmic, e
exponential, ab exponential, power, and inverse regression. (FREQ: OFF)
Appendix Other Types of Regression Calculation: to
Command Usage Tips • The commands included in the Reg sub-menu can take a long
time to ). Statistical Calculation Type
Logarithmic Regression (ln X)
e Exponential Regression (e^X)
ab Exponential Regression (A•...
User Guide - Page 59
... the display between the solutions for X and Y (and Z).
• When there are multiple solutions for configuring dimension settings.
c
f
E-57 Matrix calculation results are stored in the MATRIX Mode (N6). Appendix Equation Calculation: to engineering notation while an equation solution is in matrix memory. The actual number of solutions depends on the equation.
• Pressing...
User Guide - Page 61
... input "-1". MatA × MatB (Multiplying
Two Matrices) 3 × MatA (Matrix Scalar Multiplication) Obtain the determinant of Matrix C (Trn(MatC)). Select this menu item:
When you want to do this input.
E-59 Obtain the inverse matrix of Matrix A (MatA-1).
• Use the E key to Perform a Series of Calculations". MatA + MatB (Adding Two Matrices) MatA × MatB, MatB ×...
User Guide - Page 66
...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 the size 1 vectors perpendicular to both A and B = (A × B) A × B
Scientific Constants
Your calculator comes with 40 built-in constants that...
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 general operations you can then re-input and re-execute the calculation, if you want.
Note that the memory or variable value is...
