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 fillemon97shavooli on May 10th, 2019
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?
Current Answers
Answer #1: Posted by Odin on May 10th, 2019 9:19 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,700
Member since:
April 10th, 2010 Points: 41,236,700
Your question is not altogether clear, but if you want to see the current time on your calculator, that facility is not provided. If this is not your concern, please reubmit or use the contact information at https://www.contacthelp.com/casio/customer-service.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
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
... not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of the calculator by burning it will not get into the hands of small children and accidentally swallowed.
• Keep batteries out of the reach of fire and personal injury.
• The displays and illustrations (such as...
User Guide - Page 5
...; Be sure to press the 5 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 least once every two years for the fx-95MS/fx-100MS. A dead battery can cause discoloration or deformation...
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
... has more than three digits.
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 equations
F F 1 EQN
7 Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional...
User Guide - Page 10
Setup screens are described in the sections of this manual, the name of each time you know memory is running low. Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• Mode indicators appear in the main title of the mode you can use in a subsequent...
User Guide - Page 11
k Replay Function
• Every time you press t.
• Replay memory capacity is 128 bytes for that calculation.
• Pressing t does not clear replay memory, so you can recall the last calculation even after you perform a calculation, the replay function stores the calculation formula and its result in replay memory. Pressing the [ key displays the formula and result...
User Guide - Page 12
... more smaller expressions, which are automatically displayed using the Norm 1 format.
10 In the case of decimal values, you can display up of two or more than nine decimal places. • All of times until you reach the exponential display format setup screen shown below. k Exponential Display Formats
This calculator can select between two formats that...
User Guide - Page 13
... values inside of times until 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.
ting, press the F key a number of calculations must be enclosed within parentheses. Disp
1
• Display the selection screen. fx...
User Guide - Page 15
fx-95MS:
1
Other Models: 1 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 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 reach the setup screen shown below...
User Guide - Page 17
..., the number of significant digits, or the exponential display format, press the F key a number of significant digits 3 (Norm): Exponential display format
• Example 1: 200 Ö 7 ... or 3) that corresponds to the setup item you want to a decimal value
2.258 =
2.258
A O 2°15°28.8
I
2.258
• Example 2: To perform the following calculation: 12°34'56" ҂ 3.45 12...
User Guide - Page 20
... complete.
• Wait for the result to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To change the default angle unit (degrees, radians, grads), press the F key a number of times until you want to use. (90° = π radians = 100 grads) 2 18
This operation deletes...
User Guide - Page 22
.../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 above value is a sample only. Results differ each time.)
• Example 9: 3π ҃ 9.424777961
3 A x =
• Example 10: To determine how many different 4-digit...
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
... ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you
should scroll 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...want to specify 2 (quadratic) or 3 ...
User Guide - Page 25
... 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 x3 - 2x2 -
Solution
Press the ] key to move between coefficients on the display. This is a complex number, the real part of a solution.
23 solutions. Pressing the t key at...
User Guide - Page 28
...want to clear statistical memory.
• Input data using standard deviation.
Statistical
SD
Calculations
REG
Standard Deviation
SD
Use the F key to enter the SD Mode when you can recall using the key opera- Each time... calculate values for the following data : 55, 54, 51, 55, 53, 53, 54, 52
In the SD Mode:
A B 1 (Scl) = (Stat clear)
55 S n= SD
1. tions noted nearby. SD F 2 (fx-...
User Guide - Page 29
... data item and a separate screen for the
data frequency (Freq).
• You can then edit the displayed data, if you want to perform some other operation (calculation, recall
of statistical calculation results, etc.), you should always press the t key first to exit data display. • Pressing the S key instead of = after changing a value on the...
User Guide - Page 37
... enclosed in parentheses are performed from
right to left to their precedence during calculations. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix stack.
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 23 34 45...
User Guide - Page 40
... point and point of inflection, errors are cumulative in the case of consecutive calculations, which can result in improper operation.
Replace the battery as soon as possible when display figures become large.
Replacing the Battery Dim figures on .
Power Supply (fx-95MS only)
Users of other models should refer to become large. (This...
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