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 grigr on May 30th, 2014
How To Multiply Two Complex Number In 991ms
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Related Casio fx 991MS Manual Pages
User Guide - Page 5
... 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...become corrupted or lost completely. Very low temperatures can cause slow display response, total failure of the display, and shortening of the calculator's case, and damage to internal circuitry.
3 only, and ...
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 10
... than twice displays additional setup screens.
Whenever you input the 73rd step of each time you can hold 79 "steps."
See "Answer Memory" for more than 79 steps, you should divide your calculation into two or more parts.
• Pressing the g key recalls the last result obtained, which you press a number key or...
User Guide - Page 11
... to the editing screen.
• Pressing the e or r key immediately after you finish a calculation displays the editing screen for storage of the calculation you turn off the calculator.
k Error Locator
• Pressing r or e after you want.
• Press [ to delete the number or function at the current cursor position.
• Press A K to change from the...
User Guide - Page 12
... selection screen that determine at what point exponential notation is used. • To change the exponential display format, press the F
key a number of times until you can display up of two or more smaller expressions, which are automatically displayed using exponential notation. u Norm 1 With Norm 1, exponential notation is automatically used for integer values with...
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 reach the setup screen shown below. A B 3(All) =
Basic Calculations COMP
k Arithmetic Calculations Use the F key to enter the COMP Mode when you want to perform basic calculations. ting...
User Guide - Page 14
... ҃ 80 5 -
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 + separator marks) exceeds 10.
•...
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 use.
1(ab...
User Guide - Page 17
...; You can perform sexagesimal 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 change the settings for the number of decimal places, the number of significant digits, or the exponential display format, press the...
User Guide - Page 18
...
k Answer Memory • Whenever you want to perform a calculation using the specified number of decimal places.
200 \ 7 =
28.57100
(Internal ...calculation continues using 12 digits.)
200 \ 7 = - 14 =
28.57100 400.00000
The following performs the same calculation using memory. Memory Calculations COMP
Use the F key to clear the Fix specification.
• Example 2: 1 Ö 3, displaying...
User Guide - Page 20
...values assigned to appear on the display before starting the next calculation.
• π = 3.14159265359
k...number key (1, 2, or 3) that corresponds to the angle unit you 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...
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 ...
User Guide - Page 25
Calculation starts and one of a solution.
23
x + 2 = 0 (x = 2, -1, 1)
(Degree?) 3
(a?)
1 =
(b?)
D 2 =
(c?)
D 1 =
(d?)
2 =
(x1 = 2) ]
(x2 = -1) ]
(x3 = 1)
• If a result is indicated by the "R↔I" symbol on the screen and make changes, if you want.
• Note that you cannot input complex numbers... coefficients on the display. This is a complex number, the real part...
User Guide - Page 27
...To solve the following simultaneous equations 2x + 3y - Calculation starts and one of the solutions for the equation. ... and ] to scroll between coefficients on the screen and make changes, if you want.
• Note that you cannot input complex numbers for coefficients.
Variable name
x=
Arrow indicates
direction you input a value for the final coefficient.
• Any time until you...
User Guide - Page 28
..., the number of value:
Σx2 Σx n o σn σn-1
Perform this key operation:
A U 1 A U 2 A U 3 A X 1 A X 2 A X 3
• Example: To calculate σn&#...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...
User Guide - Page 29
... Arithmetic Mean (o) = 53.375 Number of Data (n) = 8 Sum of Values (Σx) = 427 Sum of Squares of Values (Σx2) = 22805
A X 2 = A X 1 = A U 3 = A U 2 = A U 1 =
Data Input Precautions
• S S inputs the same data twice. • You can then edit the displayed data, if you want to perform some other operation (calculation, recall
of statistical calculation results, etc.), you should...
User Guide - Page 30
... number key (1, 2, or 3) that corresponds to the type of the data you have input. • To delete data you have just input, press A U. • After inputting statistical data in memory. Press 1 if you will not be unable to perform statistical calculations using regression. REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays...
User Guide - Page 32
...expressions the same way you press S to register your input, the number of determination (r2) and sample
covariance
.
Each time you use the ...1007.48
18 A X r r r 2 =
30 Finally, calculate the coefficient of data input up to determine the regression formula terms and correlation coefficient for linear regression is indicated on the display (n value).
15 P 1005 S
20 P1010 S 25 P 1011...
User Guide - Page 37
...calculations use up to perform a calculation that is so complex that is
a negative number, the negative number must be enclosed within parentheses.
Example: ( -2)4 = 16
-24 = -16
k Stacks
This calculator...;
35 * 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 contains an argument...
User Guide - Page 40
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 on the display of the calculator indicate that are performed in the case of ^(xy), x y , x!, 3 , nPr, nCr, etc.) In the vicinity of a function's singular point and point of inflection...
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