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 sodoso on December 3rd, 2013
How To Convert Rectangular To Polar Using Fx-991ms
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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
... burst, creating the risk of fire and personal injury.
• The displays and illustrations (such as key markings) shown in this User's Guide are facing correctly when you do not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of batteries can create the risk of them...
User Guide - Page 5
..., CASIO Computer Co., Ltd. Very low temperatures can cause slow display response, total failure of the display, and shortening of this unit discharges slightly during shipment and storage.... key before using the 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, or at...
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 9
Before getting started...
A separator symbol is displayed every three digits when the integer part of equations
F F 1 EQN
7
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. ...
User Guide - Page 10
k Input Capacity
• The memory area used to the initial defaults shown below, press A B 2(Mode) =. If you need to enter in order to check the current calculation mode (SD, REG,
COMP) and angle unit setting (Deg, Rad, Gra) before beginning a calculation. Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm...
User Guide - Page 11
... you turn off the calculator.
k Error Locator
• Pressing r or e after you press t.
• Replay memory capacity is 128 bytes for storage of both expressions and results.
• Replay memory is on the display inserts the input at the location where the error occurred.
9 k Making Corrections During Input
• Use e and r to move...
User Guide - Page 12
...10 digits and decimal values with more smaller expressions, which are automatically displayed using the Norm 1 format.
10
F i x Sc i No r m
1 23
• Press 3.
k Exponential Display Formats
This calculator can select between two formats that appears, press 1 to 10 digits.
sults using exponential notation. On the format selection screen that determine at what point exponential...
User Guide - Page 13
....
sin -1.23 → S R D 1.23 T
11
fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds to
the setting you want to initialize the calculation mode and setup, and clear replay memory and variables. COMP F 1 • Negative values inside of times until you want to use the display setup (Disp) screen to perform...
User Guide - Page 14
• It is not necessary to perform.
12
uDecimal ↔ Fraction Conversion
• Use the operation shown below to convert calculation results between decimal values and fraction values.
• Note that mix fraction and decimal values are displayed in decimal format automatically whenever the total number of digits of a fractional value (integer + numerator + denominator + ...
User Guide - Page 15
... 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 use.
1(ab/c): Mixed...
User Guide - Page 17
...calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and decimal values.
• Example 1: To convert the decimal value 2.258 to a sexagesimal value and then back to a decimal value
2.258 =
2.258
A O 2°15°28.8
I
2.258
• Example 2: To perform the following calculation...3 (Norm): Exponential display format
• Example 1: 200 Ö ...
User Guide - Page 20
...the values assigned to all of times until you want to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
•...193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F key to use. (90° = π radians = 100 grads) 2 18 particular variable: 0 A j 1.
User Guide - Page 22
...• Example 10: To determine how many different 4-digit
values can be produced using the numbers 1 through 7
• Numbers cannot be duplicated within the same 4-...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! ҃...
User Guide - Page 23
... of y.
• Example 2: To convert rectangular coordinates (1, 3) to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to display the value of r, or 0 o to display the following menu.
* A n in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
θ ҃ 1.047197551...
User Guide - Page 24
...: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen. Use the F key to enter the EQN Mode when you
should scroll to solve an equation.
Arrow indicates
direction you want to
0. k Engineering Notation Calculations
• Example 1: To convert 56,088 meters to kilometers
→ 56.088 ҂...
User Guide - Page 28
..., 54, 52
In the SD Mode:
A B 1 (Scl) = (Stat clear)
55 S n= SD
1.
SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to that point is used to perform statistical calculations using standard deviation. 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 (σnҀ...
User Guide - Page 30
...REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below.
If you do this, however, you will be unable to display or edit individual data items any of regression you want to use.
1 (Lin)...Pwr, Inv, Quad)
Regression Calculations
REG
Use the F key to enter the REG Mode when you will not be able to display or edit any longer after ...
User Guide - Page 37
... (-) is treated as a Type B function, so particular care is exceeded. • Matrix calculations use up to perform a calculation that is so complex that is
a negative number, the negative number must be enclosed within parentheses. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed from left .
Example: ( -2)4 = 16...
User Guide - Page 40
...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.
This calculator is low. Continued use... Supply (fx-95MS only)
Users of the calculator indicate that are cumulative and may become dim. Screw
38 Replace the battery as soon as possible when display figures become...
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