Casio FX-991ES Support Question
Casio FX-991ES Support Question
Find answers below for this question about Casio FX-991ES.Need a Casio FX-991ES manual? We have 2 online manuals for this item!
Question posted by ovkarat on January 27th, 2014
How To Calculate A Mod B In Casio Fx-991es Plus
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... is selected by any kind whatsoever by the number key operation (1) before it means you want to initialize the calculator and return the calculation mode and setup to the corresponding example number in the Appendix. Moreover, CASIO Computer Co., Ltd. shall not be liable to change without notice. • In no event shall...
User Guide - Page 5
... hands of small children and accidentally swallowed.
• Keep batteries out of the reach of small children.
Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Improperly using this calculator.
Caution
This symbol is used to indicate information that the battery's positive k and negative l ends are facing correctly when...
User Guide - Page 6
... neutral household detergent. Because of this unit discharges slightly during shipment and storage. Wring out all important data.
• Avoid use and storage of the calculator in areas subjected to temperature extremes.
Very low temperatures can leak, causing damage to and malfunction of battery life. E-4
A dead battery can cause slow display...
User Guide - Page 7
... not improve display readability, it , and then affix the hard case to turn on the display. Replace the battery. E-5 Use d and e to turn off the calculator. After the setting is the way you press N) is low. k Turning Power On and Off
• Press O to adjust display contrast.
Before Using the...
User Guide - Page 8
...currently shows an intermediate result of a variable name to the variable. k About the Display
Your calculator has a 31-dot × 96-dot LCD screen.
The alpha input mode will be ...replayed, or there is standing by for input of a multi-statement calculation. The calculator is in the CMPLX Mode. E-6 The calculator is in the MATRIX Mode. The default angle unit is grads. The...
User Guide - Page 9
..., the display may show only the above indicators (without any value) while it performs the calculation internally. Important!
• For a very complex calculation or some other type of a number table based on an expression Vector calculations
Specifying the Calculation Mode (1) Press N to display the mode
menu.
c
f
E-7 The setup menu has two screens, which you...
User Guide - Page 10
...
Perform this key operation: 1N6(Fix)0-9 1N7(Sci)0-9 1N8(Norm)1(Norm1) or 2(Norm2)
Calculation Result Display Examples • Fix: The value you specify (from 0 to 9) controls the... causes fractions, irrational numbers, and other expressions to 10) controls the number of significant digits for displayed calculation results. Example: 100 ÷ 7 = 14.286 (Fix3) 14.29 (Fix2)
• Sci...
User Guide - Page 11
... (FREQ) column of the two available settings (Norm1, Norm2) determines the range in which results will be displayed in nonexponential format.
The decimal point for calculation results
. only. • Norm: Selecting one of the STAT Mode STAT editor screen on or off. Norm1: 10-2 > x, x > 1010 Norm2: 10...
User Guide - Page 12
... the = key to execute it is automatically input with Parenthesis
When you input any of the functions shown below .
19(CLR)1(Setup)=(Yes)
This setting: Calculation Mode Input/Output Format Angle Unit Display Digits Fraction Display Format Complex Number Format Statistical Display Decimal Point
Is initialized to input the argument and...
User Guide - Page 13
... format. Input expression: 1111 + 2222 + 3333 + 444
Math
Displayed portion:
Cursor
• When the ] indicator is displayed, you input uses up to 99 bytes of a calculation, immediately before the = key is different if you want to scroll back. Number of Input Characters (Bytes) • You can show up more closed parentheses...
User Guide - Page 14
... mode is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to correct an expression as the ... have insert or overwrite selected as you input replaces the character at a convenient point and
calculate the result. Changing the Character or Function You Just Input
Example: To correct the expression...
User Guide - Page 15
... correct the expression 369 × × 12 so it becomes
369 × 12 LINE Insert Mode:
369**12
dd
Y Overwrite Mode:
369**12
ddd
Y
Correcting a Calculation Example: To correct cos(60) so it becomes sin(60) LINE Insert Mode:
c60)
dddY
s Overwrite Mode:
c60)
dddd
s Inserting Input into...
User Guide - Page 16
...format as they appear in your textbook.
This will display the part of a calculation formula to be greater than one display line. k Inputting with Math Format
When ... when you nest too many functions and/or parentheses. If this happens, divide the calculation into multiple parts and calculate each part separately.
This is allowed.
d1
=
You can then make necessary corrections....
User Guide - Page 17
... Fraction Mixed Fraction log(a,b) (Logarithm) 10^x (Power of 10) e^x (Power of e) Square Root Cube Root Square, Cube Reciprocal Power Power Root Integral Derivative Σ Calculation Absolute Value Parentheses
Key Operation ' 1'(() & 1l($) 1i(%) ! 1!(#) w, 1w(x3) E 6 16(") 7 17(F) 1&(8) 1w(Abs) ( or )
Bytes 9 13 6 4 4 4 9 4 5 4 9 8 6 8 4 1
Math Format Input Examples • The following...
User Guide - Page 18
... the function '.
• If the cursor is located left of 1 + (2 + 3) + 4 into a function. Example 3: To input (1 + 2 )2 × 2 =
5
MATH
Math
(1+'2c5e)
w*2=
• When you press = and obtain a calculation result using Math format, you can be used in the above procedure, and the required key operations to use them. This incorporates the expression in...
User Guide - Page 19
... press = or 1=.
• π form (form that includes π within irrational number display) display conditions are the same as those for the input/output format, calculation results are always displayed using decimal values. For details, see "Using S-D Transformation".
Example 1: '2 +'8 = 3'2
MATH
Math
1
!2e+!8=
Math
2
!2e+!81=
E-17
Original Expression:
Function Key...
User Guide - Page 20
... ranges for which ' form (form that include square root symbols can be displayed in the CMPLX Mode, the following are the calculations for which ' form is also counted as a term). ' form calculation results use display formats like those shown
below.
± a'b , ± d ± a'b , ± a'b ± d'e cf
E-18 Angle Unit Setting Deg Rad...
User Guide - Page 21
...form even if coefficients (a′, c′, and d′) are outside of the examples are reduced to be used.
More than two terms in the calculation result
• Calculation results displayed in ' form are displayed in decimal form even when any intermediate result has three or more terms.
Example: (1 + '2 + '3 )(1 - '2 - '3 )(= -4 - 2'6 ) = -8.898979486
E-19 a'b + c
d'e f
→...
User Guide - Page 22
..., see "Specifying the Number of decimal places and significant digits for the calculation result. • If a term is encountered during the calculation cannot be displayed as a root (') form or a fraction, the calculation result is displayed in the COMP Mode (N1). All calculations in this section are performed in decimal form. Example: 7 × 8 - 4 × 5 = 36...
User Guide - Page 23
... Closed Parenthesis You can omit any closed parenthesis ( ) ) immediately preceding operation of the = key at the end of Linear format. Example: (2 + 3) × (4 - 1) = 15
LINE
(2+3)* (4-1=
k Fraction Calculations
How you should input fractions depends on the input/output format that involves both fraction and decimal values is currently selected.
Math Format
Improper Fraction...
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