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 mkgothi125 on March 13th, 2016
How To Solve Cosh(2+i3) In Casio 991ms?
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Current Answers
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 3
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 ... illustration, slide the unit out of the cover. • Always slide the keyboard end of the unit into the cover
first. Never slide the display end of the unit into the cover.
.....1
.....2
1
User Guide - Page 4
....
• Keep batteries out of the reach of battery specified for a long time (fx-95MS/100MS/570MS). • Use only the type of small children. Disposing of the Calculator
• Never dispose of fire and personal injury.
• The displays and illustrations (such as key markings) shown in personal injury or material damage...
User Guide - Page 5
... cause slow display response, total failure of the display, and shortening of these materials. Handling Precautions
• 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...
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
... 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.
Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for the fx-95MS only. A separator symbol is displayed every three digits when the integer part...
User Guide - Page 15
... use .
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13 Disp
1
• Display the selection screen.
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...
User Guide - Page 16
...To calculate what is the percentage
increase in weight?
(160%)
300 + 500 A v
• Example 7: What is the percentage change when a value is increased from 40 to input a mixed fraction while the d/c display ...* As shown here, if you want to use the variable in a mark up /discount calculation. How about to assign the Answer Memory value into a variable and then use *the current Answer
...
User Guide - Page 20
...(1, 2, or 3) that corresponds to the angle unit you want to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To change...arithmetic calculations. 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
...
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
... convert rectangular coordinates (1, 3) to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of .
21 * 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...
User Guide - Page 24
...81.25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you want to solve an equation. 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 25
... part of the solutions for the equation. Press A r to toggle the display between all of a solution.
23 Calculation starts and one of the first solution appears first. solutions. Pressing the t... 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 - Variable name
x1=
Arrow indicates
direction you
should...
User Guide - Page 26
...?
2 3
Use this screen to
view other
0. 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) ...+ c2z = d2 a3x + b3y + c3z = d3
Entering the EQN Mode displays the initial simultaneous equation screen.
Element value 24
Coefficient name
a 1? Arrow indicates...
User Guide - Page 27
Pressing the t key at this point returns to
0.
Calculation starts and one of the solutions for the equation.
•... coefficients. Variable name
x=
Arrow indicates
direction you
should scroll to the coefficient input screen.
• Example: To solve the following simultaneous equations 2x + 3y - Solution
Press the ] key to scroll between coefficients on the screen and...
User Guide - Page 36
... • Press e or r to display the location of the cause of π...coshҀ1, tanhҀ1, (Ҁ) d*, h*, b*, o*, Neg*, Not*, Det**, Trn**, arg*, Abs*, Conjg*
7 Abbreviated multiplication format in the following order of Type B functions: 2 3, Alog2, etc.
8 Permutation and combination: nPr, nCr ∠*
9 Dot (•)** 0 and* # xnor*, xor*, or*
34 k Order of Operations
Calculations...
User Guide - Page 37
... levels and the command stack has 24 levels. exIn 120 → ex{In( 120)} • Other operations are performed from
right to their precedence during calculations.
* 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 38
...as sinx, except when ȊxȊ= (2n-1)҂90.
• Calculations are deleted from the stack as the calculation is ±1 at the 10th digit. Functions
Input Range
sinx DEG 0&#...522;xȊ Ϲ230.2585092 coshx
sinh-1x 0Ϲ ȊxȊ Ϲ4.999999999҂1099
cosh-1x 1Ϲ x Ϲ4.999999999҂1099
tanhx 0Ϲ ȊxȊ Ϲ9.999999999҂1099...
User Guide - Page 40
... can result in improper operation. Power Supply (fx-95MS only)
Users of other models should refer to become large. (This is also true of internal consecutive calculations that battery power is low.
* 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...
User Guide - Page 42
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
SA02S0A60-2D06P-Er inPtreindteidn inCChihninaa CAC3A13010060367-1-1
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