Casio fx 991MS Support Question
Casio fx 991MS Support Question
Find answers below for this question about Casio fx 991MS - Scientific Display Calculator.Need a Casio fx 991MS manual? We have 1 online manual for this item!
Question posted by heJross4 on May 31st, 2014
How To Solve Equations With Power 4 In Fx-991ms
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Current Answers
Related Casio fx 991MS Manual Pages
User Guide - Page 1
E
http://world.casio.com/edu_e/
fx-95MS fx-100MS fx-115MS (fx-912MS) fx-570MS fx-991MS
User's Guide
kfx-912MS owners
Please be sure to read the important notice of this manual.
User Guide - Page 4
... fire and personal injury.
• The displays and illustrations (such as key markings) shown in this calculator. Batteries
• After removing the battery from the calculator, put it . Doing so can cause ...into the calculator. • Remove the battery if you do not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of the calculator by burning...
User Guide - Page 5
...calculator for the first time.
• Even if the calculator is operating normally, replace the battery at least once every three years for the fx115MS/fx-570MS/fx-991MS... battery power can ...fx-95MS/fx-100MS. A dead battery can cause discoloration or deformation of battery life. Very low temperatures can cause slow display response, total failure of the display, and shortening of the calculator...
User Guide - Page 7
... Display Formats 10 kDecimal Point and Separator Symbols 11 k Initializing the Calculator 11
Basic Calculations 11
k Arithmetic Calculations 11 kFraction Operations 12 kPercentage Calculations 14 kDegrees, Minutes, Seconds Calculations 15 kFIX, SCI, RND 15
Memory Calculations 16
kAnswer Memory 16 kConsecutive Calculations 17 kIndependent Memory 17 k Variables 17
Scientific...
User Guide - Page 8
...21
kEngineering Notation Calculations 22
Equation Calculations 22
kQuadratic and Cubic Equations 22 kSimultaneous Equations 24
Statistical Calculations 26
Standard Deviation 26 Regression Calculations 28
Technical Information 32
kWhen you have a problem 32 kError Messages 32 kOrder of Operations 34 kStacks 35 kInput Ranges 36
Power Supply (fx-95MS only 38 Specifications (fx-95MS only...
User Guide - Page 9
...Before getting started...
fx-95MS Modes
To perform this type of calculation:
Perform this To enter key operation: this mode:
Basic arithmetic calculations F 1
COMP
Standard deviation
F 2
SD
Regression calculations
F 3
REG
Solution of the mantissa has more than three digits. A separator symbol is displayed every three digits when the integer part of equations
F F 1 EQN
7 Users...
User Guide - Page 10
Example: Equation
Calculations
EQN
Note!
• To return the calculation mode and setup to 79 steps for more than twice displays additional setup screens.
One step is taken up each section. See "Answer Memory" for a single calculation. Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• ...
User Guide - Page 13
fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds to
the setting you want to use the display setup (Disp) screen to ... Mode when you reach the setup screen shown below. Disp
1
• Display the selection screen.
ting, press the F key a number of calculations must be enclosed within parentheses. k Decimal Point and Separator Symbols
You can ...
User Guide - Page 15
... (Disp) screen to specify the display format when a fraction calculation result is greater than one.
• To change the fraction display format, press the q key a number of times until you want to
the setting you reach the setup screen shown below.
fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to...
User Guide - Page 20
...; 8.4
193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F key to enter the COMP Mode when you want to use. (90° = π radians... of times until you want to clear the values assigned to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• ...
User Guide - Page 22
... ) ҃ 1.988647795
7 A H 123 =
• Example 4: 123 ѿ 302 ҃ 1023
123 + 30 K =
• Example 5: 123 ҃ 1728
12 N * =
* A N in a group of fx-570MS/fx-991MS.
• Example 6: 1 ҃ 12
1 3
ȕ
1 4
R 3 a , 4 a T a =
• Example 7: 8! ҃ 40320
8 A f =
• Example 8: To generate a random number between
0.000 and 0.999
A M =
0.66400
(The...
User Guide - Page 23
... convert rectangular coordinates (1, 3) to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of .
21 * A n in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
θ ҃ 1.047197551
0 o
• Press 0 n to display the value of r, or 0 o to display the value of fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to...
User Guide - Page 24
...should scroll to solve an equation.
Arrow indicates
direction you want to
0. EQN F F 1 (fx-95MS) F F F 1 (Other Models)
k Quadratic and Cubic Equations
Quadratic Equation: ax2 + bx + c = 0 Cubic Equation: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen.
k Engineering Notation Calculations
• Example 1: To...
User Guide - Page 25
...input a value for the final coefficient.
Calculation starts and one of the first solution appears...display. solutions.
Press A r to toggle the display between all of a solution.
23 • Any time until you input a value for the final coefficient (c for a quadratic equation, d for a cubic equation), you can cause calculation to take more
time.
• Example 1: To solve the equation...
User Guide - Page 26
... To solve the equation 8x2 - 4x + 5 = 0 (x = 0.25 ± 0.75 i)
(Degree?) (a?) (b?) (c?) (x1 = 0.25 + 0.75i) (x2 = 0.25 - 0.75i)
2
8 = D 4 = 5 = ]
k Simultaneous Equations
Simultaneous Linear Equations with Two Unknowns: a1x + b1y = c1 a2x + b2y = c2
Simultaneous Linear Equations with Three Unknowns: a1x + b1y + c1z = d1 a2x + b2y + c2z = d2 a3x + b3y + c3z = d3
Entering the EQN Mode displays...
User Guide - Page 27
...
direction you cannot input complex numbers for the equation. Use [ and ] to scroll between coefficients on the screen and make changes, if you want.
• Note that you
should scroll to the coefficient input screen.
• Example: To solve the following simultaneous equations 2x + 3y -
Calculation starts and one of the solutions for coefficients...
User Guide - Page 30
...fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays... regression 3 (Exp) : Exponential regression r 1 (Pwr) : Power regression r 2 (Inv) : Inverse regression r 3 (Quad) ...display or edit individual data items any longer after perform either the following operations. Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations...
User Guide - Page 37
...fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed first. • When a calculation...calculator uses memory areas, called "stacks," to temporarily store values (numeric stack) and commands (command stack) according to two levels of a stack is required when the calculation includes a high-priority Type A function, or power...
User Guide - Page 40
... the battery
1 Press A i to turn power off.
* For a single calculation, calculation error is ±1 at the 10th digit. (In the case of exponential display, calculation error is ±1 at the last significant digit.) Errors are cumulative in the case of consecutive calculations, which can result in improper operation. Screw
38 Power Supply (fx-95MS only)
Users of inflection...
User Guide - Page 41
... (international model name) apply to the "User's Guide 2 (Additional Functions)."
Power Supply: Single AA-size battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of the fx-912MS should refer to the same model. u Auto Power Off
Calculator power automatically turns off . When this happens, press 5 to the description of other models should refer...
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