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 HughbLu on February 19th, 2014
How Solve An Equation With Casio Fx-991ms
The person who posted this question about this Casio product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.
Current Answers
Related Casio fx 991MS Manual Pages
User Guide - Page 1
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. E
http://world.casio.com/edu_e/
User Guide - Page 4
... risk of fire and personal injury.
• The displays and illustrations (such as key markings) shown in this calculator.
Disposing of the Calculator
• Never dispose of small children. Doing so ...you do not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of battery specified for this calculator in this manual handy for illustrative purposes
...
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,...calculator's case, and damage to internal circuitry.
3 shall not be exposed to very high temperatures. Heat can cause slow display response, total failure of the display, and shortening of battery life. Moreover, CASIO...
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
... and
Permutation/Combination 20 kAngle Unit Conversion 21
kCoordinate Conversion (Pol (x, y), Rec (r 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...
User Guide - Page 9
... the fx-95MS only. Users of other models should refer to view both the calculation formula and its result at the same time.
• The upper line shows the calculation formula. • The lower line shows the result. Before getting started... A separator symbol is displayed every three digits when the integer part of equations
F F 1 EQN...
User Guide - Page 10
...) and angle unit setting (Deg, Rad, Gra) before beginning a calculation. Example: Equation
Calculations
EQN
Note!
• To return the calculation mode and setup to input more than twice displays additional setup screens. Whenever you input the 73rd step of the display. • Be sure to perform the calculations being described is taken up only one step.
•...
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 specify the symbols you want to initialize the calculation mode and setup, and clear replay memory and variables. sin -1.23 → S R D 1.23 T
11
COMP F 1 • Negative values inside of...
User Guide - Page 20
...
• Wait for the result to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse ...want to perform basic arithmetic calculations. particular variable: 0 A j 1. A B 1(Mcl) =
• Example: 193.2 Ö 23 ҃ 8.4
193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F ...
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
* 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 polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of .
21 D R G
1 2 3
• Pressing 1, 2, or 3 ...
User Guide - Page 24
... = J
• Example 2: To convert 0.08125 grams to milligrams
→ 81.25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you
should scroll to
0.
Arrow indicates
direction you solve equations up to three degrees and simultaneous linear equations with up to three unknowns.
view other elements. Element value 22 Deg r ee?
2 3
Use this...
User Guide - Page 25
Calculation starts and one of the solutions for the equation.
This is a complex number, the real part of the first solution appears first. Press A r to toggle the display between coefficients on the display. solutions. Solution
Press the ] key to...a quadratic equation, d for a cubic equation), you can cause calculation to take more
time.
• Example 1: To solve the equation x3 - ...
User Guide - Page 26
... for each of un- Element value 24
elements. x1=
D
R⇔I
0.25
x1=
A r
D
R⇔I
0.75 i
• Example 2: 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...
User Guide - Page 27
... to move between all of the solutions appears as soon as you
should scroll to
0. Use [ and ] to the coefficient input screen.
• Example: To solve the following simultaneous equations 2x + 3y - Calculation starts and one of the solutions for the...
User Guide - Page 28
...;x2, o, σn and σn-1, which you want to perform statistical calculations using the key sequence shown below.
S
• Input data is indicated on the display (n value).
54 S 51 S 55 S 53 S S 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
A X 3 =
26 Statistical
SD
Calculations
REG
Standard Deviation
SD
Use the F key to enter the SD...
User Guide - Page 30
... regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the F key to enter the REG Mode when you want to display or edit any longer after perform either the following operations. REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below.
L i n Log Ex p
1 23...
User Guide - Page 37
... levels of the same precedence are performed first. • When a calculation contains an argument that is required when the calculation includes a high-priority Type A function, or power or root operations.
Squaring a matrix, cubing a matrix, or inverting a matrix uses one stack level. (fx-570MS, fx-991MS only)
• Example:
1
23
45
123 4
56 7
Numeric Stack 12...
User Guide - Page 40
... become large. * 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.
Power Supply (fx-95MS only)
Users of other models should refer to the...
User Guide - Page 41
...display of fx-115MS.
39
Approximately 2 years when left with power turned off if you do not perform any operation for fx-912MS owners The names fx-912MS (Japan domestic model name) and fx...power back on.
Specifications (fx-95MS only)
Users of the fx-912MS should refer to 104°F)
Important notice for about six minutes. u Auto Power Off
Calculator power automatically turns off . ...
Similar Questions
How To Look The Time On Casio Fx 991ms Scientific Display Calculator?
If I want to look my time on this calculator, what have I suppose to do?
If I want to look my time on this calculator, what have I suppose to do?
(Posted by fillemon97shavooli 5 years ago)
How To Solve Equations With Fx-9750gii
(Posted by covegk 9 years ago)
How To Solve Equations With Power 4 In Fx-991ms
(Posted by heJross4 9 years ago)
How To Solve Equation Of Two Variables On Casio 991 Ms Calculator
(Posted by Jbl1uncles 10 years ago)