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 corintsty on November 9th, 2013
How To Do Summation In Fx-991ms Calculator
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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 3
Never slide the display end of the unit into the cover.
.....1
.....2
1 Removing and Replacing the Calculator's Cover
• Before starting .....1 Holding the cover as shown in the illustration, slide the unit out of the cover. • After you are finished .....2 Holding ...
User Guide - Page 4
...calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of batteries can cause them 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 key markings) shown in this calculator. Never expose batteries ...
User Guide - Page 5
... 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...fx-95MS/fx-100MS. A dead battery can cause memory contents to become corrupted or lost completely. Always keep written records of these materials. Heat can cause slow display response, total failure of the display...
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 mantissa has more than three digits. Before getting started... Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for 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...
User Guide - Page 10
... setup screens. If you need to enter in order to perform the calculations being described is taken up each section. Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• Mode indicators appear in a subsequent calculation. k Input Capacity
• The memory area used to change the...
User Guide - Page 11
...
• Pressing r or e after 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 an error occurs displays the calculation with the cursor positioned at the location where the error occurred.
9 Pressing [ again back steps sequentially...
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
A B 3(All) =
Basic Calculations COMP
k Arithmetic Calculations Use the...
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
...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 clear the values assigned to perform basic ...arithmetic calculations. COMP F 1
• Certain types of calculations may take a long time to complete.
• Wait for the result to appear on the display before starting the next calculation.
...
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 the case 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 above...
User Guide - Page 23
... (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
0 o
• Press 0 n to display the value of .
21
User Guide - Page 24
...→ 81.25 ҂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...
User Guide - Page 28
... can recall 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 (σnҀ1) = 1.407885953
A X 3 =
26
SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to calculate values for the following data : 55, 54, 51, 55, 53, 53, 54...
User Guide - Page 30
If you do this, however, you will be able 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
re
Pw r I nv Quad
1 23
• Press the number key (1, 2, or 3) that corresponds...
User Guide - Page 37
...) and commands (command stack) according to two levels of a stack is exceeded. • Matrix calculations use up to their precedence during calculations. The numeric stack has 10 levels and the command stack has 24 levels. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed first. • When...
User Guide - Page 40
... become dim. Replace the battery as soon as possible when display figures become large. Power Supply (fx-95MS only)
Users of other models should refer 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...
User Guide - Page 41
...SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of fx-115MS.
39
Approximately 2 years when left with power turned off if you do not perform any...same model. Specifications (fx-95MS only)
Users of other models should refer to the "User's Guide 2 (Additional Functions)." u Auto Power Off
Calculator power automatically turns off . Owners of the fx-912MS should refer to...
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