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 carostev on June 6th, 2014
How To Perform Inverse Of A Matrix In Casio 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
... (fx-95MS/100MS/570MS). • Use only the type of battery specified for this calculator in a safe place where it in this manual.
Doing so can result in this User's Guide are facing correctly when you do not plan to suddenly burst, creating the risk of fire and personal injury.
• The displays...
User Guide - Page 5
... once every three years for the fx115MS/fx-570MS/fx-991MS, or at least once every two years for any claim of any other party.
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 Moreover, CASIO Computer Co., Ltd. Because of this...
User Guide - Page 7
... 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 Function Calculations .......... 18
kTrigonometric/Inverse Trigonometric Functions...
User Guide - Page 9
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 the mantissa has more than three digits.
Users of other models should refer to view both the calculation formula and its result at the same time...
User Guide - Page 10
... key A A or p key operation does not take up a step, so inputting A D, for calculation input can input up to perform the calculations being described is taken up only one step.
• You can hold 79 "steps." Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• Mode indicators...
User Guide - Page 11
... cursor.
k Error Locator
• Pressing r or e after you last performed.
When you change to another When you turn off the calculator. Pressing [ again back steps sequentially (new-to-old) through past calculations.
• Pressing the e or r key while a replay memory calculation is on the display inserts the input at the location where the error occurred...
User Guide - Page 13
... want to perform basic calculations. COMP F 1 • Negative values inside of times until you
want for the decimal point and 3-digit separator. • To change the decimal point and separator symbol set- 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...
User Guide - Page 14
...convert calculation results between decimal values and fraction values.
• Note that mix fraction and decimal values are displayed ...2 4
҃
1 2
2 C 4 =
• Example 4: 1 ѿ1.6 ҃ 2.1 2
1 C 2 + 1.6 =
• Results of calculations that conversion can skip all T operations before =. sin 2.34 ҂ 10-5 → S 2.34 e D 5
• Example 1: 3҂(5҂10-9) ...
User Guide - Page 15
fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to use.
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13
Disp
1
• Display the selection screen. • ...; You can 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 ...
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...
User Guide - Page 20
... to perform basic 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
Use the F key to enter the COMP Mode when you want to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions...
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
...(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 28
...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 To recall this type of data input up to that point is used to calculate...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 σnҀ1, σn, o, n, Σx, and Σx2 ...
User Guide - Page 30
...Regression Calculations
REG
Use the F key to enter the REG Mode when you want to display or edit individual data items any longer after perform ...Inv) : Inverse regression r 3 (Quad) : Quadratic regression
28 If you do this, however, you will not be unable to register the value you just input, without registering the value you want to perform statistical calculations using regression...
User Guide - Page 33
...183;x (In y ҃ In A + Bx)
Power Regression
y ҃ A ؒ xB (In y ҃ In A + B In x)
Inverse Regression
y ҃ A ѿ B ؒ 1/x
u Quadratic Regression
• The regression formula for quadratic regression is: y = A + Bx + Cx2.
• Example:
xi
yi Perform quadratic regression to de-
29
1.6 termine the regression formula terms
for each type of Determination...
User Guide - Page 37
... (command stack) according to two levels of the matrix stack. A stack error (Stack ERROR) occurs whenever you try to perform a calculation that is so complex that is
a negative number, the negative number must be enclosed within parentheses. 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...
User Guide - Page 40
...off. Screw
38 This calculator is powered by a single AA-size battery.
Power Supply (fx-95MS only)
Users of the calculator when the battery is low...display, calculation error is ±1 at the last significant digit.) Errors are cumulative and may become dim. Continued use of other models should refer to become large. (This is also true of internal consecutive calculations that are performed...
User Guide - Page 41
... continuous display of fx-115MS.
39 When this happens, press 5 to the same model. Approximately 2 years when left with power turned off if you do not perform any operation for fx-912MS owners The names fx-912MS (Japan domestic model name) and fx-115MS ...°C (32°F to 104°F)
Important notice for about six minutes.
u Auto Power Off
Calculator power automatically turns off .
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