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 evilsmartso on May 23rd, 2012
Casio Fx991es Plus
Can the casio fx991es plus do rref's?
Current Answers
Related Casio FX-991ES Manual Pages
User Guide - Page 4
...".
Specify the angle unit in this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. Initializing the Calculator
Perform the following shows an example of this manual, it . Example numbers (like "") in the Appendix: Deg : Specify Degree for the angle unit. Example: 1(Setup)
...
User Guide - Page 5
... it in personal injury or material damage if ignored. Doing so can result in a safe place where it will not get into the
calculator. • Use only the type of battery specified for later reference.
E-3 If accidentally swallowed, consult with a physician immediately.
• Never charge the battery, try to ...
User Guide - Page 6
... so can remove printed markings and can damage internal circuitry.
• Never drop the calculator or otherwise subject it might be splashed by water or exposed to clean the exterior of... amounts of this unit discharges slightly during shipment and storage. Also avoid leaving the calculator in the calculator.
• The battery that comes with a ballpoint pen or
other volatile agents ...
User Guide - Page 7
... Contrast
1N(SETUP)c6(]CONT') This displays the contrast adjustment screen. Replace the battery.
Use d and e to the back of the calculator as shown in the illustration below. E-5
Before Using the Calculator
k Removing the Hard Case
Before using d and e while the mode menu (which appears when you press N) is low.
k Turning Power...
User Guide - Page 8
... and this :
The keypad has been shifted by for input of significant digits is in effect. The default angle unit is grads.
Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT VCT
7 8 9 FIX SCI Math
$`
Disp
Means this indicator will disappear when you...
User Guide - Page 9
... are executed and displayed. c
f
E-7 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 select. • To select the CMPLX Mode, for example, press 2.
Calculation Modes and Calculator Setup
k Calculation Modes
When you can use to execute, the display may show...
User Guide - Page 10
...Linear
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 ...causes fractions, irrational numbers, and other expressions to the specified digit before being displayed. Calculation results are rounded off to be displayed as the default
angle unit:
Perform this key...
User Guide - Page 12
...(, Conjg(, Not(, Neg(, det(, Trn(, Rnd(
E-10
Example: 2 (5 + 4) - 2 × (-3) =
LINE
2(5+4)2*y3=
Inputting a Function with Parenthesis
When you input calculation expressions just as shown below , it .The calculator automatically judges the calculation priority sequence for addition, subtraction, multiplication, and division, functions, and parentheses. Next, you need to execute it is...
User Guide - Page 13
... when you are inputting functions with Math Format". For more information, see "Inputting with Math format, each key operation uses up to the right of a calculation, immediately before the = key is different if you can omit one or more than one byte.
Displaying a Long Expression The display can omit the multiplication...
User Guide - Page 14
...the overwrite mode, any new character you input replaces the character at a convenient point and
calculate the result. See "Incorporating a Value into a Function" for Linear format input is selected... overwrite mode is selected. • The initial default for more information. • The calculator automatically changes to the overwrite mode by pressing 1Y(INS). • With Math format, ...
User Guide - Page 16
... and parentheses is two display screens (31 dots × 2).
Further input will become impossible if you input 14 ÷ 0 × 2 = by pressing A, which clears the calculation. d1
=
You can input and display fractions and some functions using the same format as they appear in your textbook. Further input will become impossible...
User Guide - Page 17
...is
selected. • Pay close attention to the location and size 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 operations are...
User Guide - Page 18
... of an input expression (a value, an expression within parentheses, etc.) 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 cut off as shown here.
User Guide - Page 19
...8226; When "LineIO" is selected for the input/output format, calculation results are always displayed using decimal values (no irrational number form)...output format, you can also incorporate values into the following functions. 1l($), 1i(%), !, 6, 1!(#), 1w(Abs)
Displaying Calculation Results in a form that Includes '2, π, etc. (Irrational Number Form)
When "MthIO" is selected for S-D conversion...
User Guide - Page 20
... that includes ' within irrational number display) results can have up to both the real part and the imaginary part.
Trigonometric function calculations
c.
Angle Unit Setting Deg Rad
Gra
Angle Value Input
Units of 15°
Multiples
of
1 12
π
radians
50 Multiples of the above ranges. a. CMPLX ...
User Guide - Page 21
...'2 = 10'3 + 11'2
11 10
110
• The result is the least common multiple of c and f.
• Since calculation results are reduced to be used. The following shows the range for each of the coefficients (a, b, c, d, e, f ).
1...(a, c, and d). More than two terms in the calculation result
• Calculation results displayed in decimal form even when any intermediate result has three ...
User Guide - Page 22
... result is displayed in the COMP Mode (N1). Example: log3 + '2 = 1.891334817
Basic Calculations
(COMP)
This section explains how to perform arithmetic calculations. Example: 7 × 8 - 4 × 5 = 36
LINE
7*8-4*5=
• The calculator automatically judges the calculation priority sequence.
All calculations in this section are performed in decimal form. For more information, see...
User Guide - Page 23
...
Fraction Format Pressing the 1f(
a -bc
⇔
-dc
)
key
toggles
the
display
fraction
between mixed fraction and improper fraction 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.
This is true only...
User Guide - Page 75
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
SA0411-B Printed in China
Appendix - Page 52
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
SA0411-B
Printed in China Imprimé en Chine
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