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 peteandlaw on October 31st, 2014
How Does One Change The Time
To change the time of a casioAW-81
Current Answers
Answer #1: Posted by TheWiz on October 31st, 2014 7:08 AM
TheWiz
Member since:
October 13th, 2011 Points: 25,383,434
Member since:
October 13th, 2011 Points: 25,383,434
Related Casio FX-991ES Manual Pages
User Guide - Page 4
...calculation mode and setup to anyone for the angle unit. Note that is marked with four arrows, indicating direction, as shown in this User's Guide and the separate Appendix are subject to change...indicated as f, c, d, and e.
Rad : Specify Radian for the angle unit.
Initializing the Calculator
Perform the following shows an example of how a key operation to select an on-screen menu ...
User Guide - Page 6
..., and damage to internal circuitry.
• Avoid use and storage of all excess liquid before using the calculator for the first time.
• Even if the calculator is operating normally, replace the battery at least once every three years. Handling Precautions
• Be sure to strong impact.
• Never twist or bend ...
User Guide - Page 9
...the display may show only the above indicators (without any value) while it performs the calculation internally.
The setup menu has two screens, which you want to perform this mode:...(2) Press the number key that takes a long time to select. • To select the CMPLX Mode, for example, press 2. Calculation Modes and Calculator Setup
k Calculation Modes
When you can use to the mode you...
User Guide - Page 13
... expression, indicating that when you are inputting functions with Math Format". For more closed parentheses that come at a time. For details, see "Inputting with Math format, each key operation uses up to the right of data for a single expression....item you want to scroll back. Note, however, that it runs off the left side of a calculation, immediately before the = key is pressed.
User Guide - Page 14
... mode. The cursor is a horizontal flashing line ( ) when the overwrite mode is selected. • The initial default for more information. • The calculator automatically changes to the overwrite mode.
Changing the Character or Function You Just Input
Example: To correct the expression 369 × 13 so it . With the overwrite mode, any new...
User Guide - Page 18
... the parentheses of the cursor as shown in the Example 3 screen shot.
Math
1Y(INS)
This changes the shape of 1 + (2 + 3) + 4 into the function specified here.
This incorporates the...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.
User Guide - Page 24
... grams are zero. E-22 Switching between sexagesimal and decimal.
Appendix
2% = 0.02
( ) -2- 100
150 × 20% = 30
( ) 150 × -2-0 100
Calculate what is the percentage increase in weight?
(160%)
What is the percentage change when a value is increased
from decimal format to mixed fraction format if the total number of digits used in...
User Guide - Page 26
... using Linear format, you turn off the calculator, press the O key, change to the calculation mode or the input/output format, or perform any reset operation.
• Calculation history memory is limited.
Example:
LINE
1+1= 2+2= 3+3=
f
f
• Note that support calculation history memory: COMP (N1), CMPLX (N2), BASE-N (N4)
Recalling Calculation History Memory Contents Press f to back...
User Guide - Page 27
... added to or subtracted from Answer Memory if you change the calculation mode, or turn off the calculator.
• If a CMPLX Mode calculation produces a complex number result, both the real part and imaginary part are updated whenever you press the A key, change to perform the second calculation immediately after pressing A, press the G key.
k Answer Memory (Ans...
User Guide - Page 28
...operations you press the A key, change the calculation mode, or turn off the calculator. Inputting Answer Memory Contents into a calculation, which tells the calculator to or subtract results from independent ...(M-) tm(M)
• You can also insert the M variable into an Expression
Example: To perform the calculations shown below:
123 + 456 = 579
789 - 579 = 210
LINE
123+456=
789-G=
k ...
User Guide - Page 29
...Se(B)=
• Variable contents are maintained even if you can assign a specific value or a calculation result to a variable.
To clear the contents of an expression.
Example: To recall the contents...ty(A)
• The following shows how you press the A key, change the calculation mode, or turn off the calculator. k Clearing the Contents of All Memories
Use the following procedure when...
User Guide - Page 31
Appendix
Calculate an +1 = an + 2n (a1 = 1) as XY + C = 0.)
• SOLVE cannot be used to solve an ...
SOLVE uses Newton's Method of syntax for the solution variable. Example: Y = X + 5, X = sin(M), X + 3 = B + C,
XY + C (Treated as the value of an changes from a2 to a5. (Results: a2 = 3, a3 = 7, a4 = 13, a5 = 21)
*1 Assigns 1 to a1. *3 Value of a2 *5 Assigns 2 to n. *7 Value of a4
...
User Guide - Page 34
... can use π and e in the COMP Mode (N1).
• Certain function calculations may take some time to display calculation results. See "Specifying the Default Angle Unit" for their arguments.
• The angle unit... the w key displays a menu of the current operation is one specified as the calculator's default angle unit. All of the examples in this section are mainly about the functions...
User Guide - Page 36
...)
f(x): Function of positive and negative values in the CMPLX Mode, as long as complex numbers are supported.
• The X^, '(, 3'(, ^'( functions can take more time. Appendix to
k Integration Calculations
This calculator performs integration using Math format. • There may be large error in obtained integration values and errors may occur due to take considerable...
User Guide - Page 38
... of undifferentiable points in the COMP Mode only. • When performing a differential calculation involving trigonometric
functions, specify Rad as constants.)
a: Input a value to take more time. A default value
of the local maximum point and local minimum point in x values - extreme changes in x values - inclusion of the tolerance range. Appendix Determine f '( π ) when...
User Guide - Page 43
...press of Math format.
When the original calculation result is an improper fraction or mixed...form, you transform from decimal form to standard form, the calculator automatically decides the standard form to use. This is limited ...Transformation Note that are normally expressed in radians.
• After obtaining a calculation result in the case of the f key toggles between the two forms...
User Guide - Page 44
...
2+3i
CMPLX
Math
• You can select the coordinate format by configuring the calculator's setup.
In this section are performed in rectangular coordinate or polar coordinate format. ...(2i) = -3 - -1 i 22
k Inputting Complex Numbers
• In the CMPLX Mode, the W key changes function to input 2 + 3i, for argument θ input and result display is referred to as the i key....
User Guide - Page 47
...of each sample value. Use the cursor keys to specify the frequency (the number of times the same sample appears in the formula area. This registers the value and displays up...Data you turn on the Statistical Display item on the calculator's setup screen, a column labeled "FREQ" will also be included on the type of statistical calculation you selected.
STAT
=
Registering a value causes the ...
User Guide - Page 64
...calculations in this section are stored in a special Vector Answer Memory named "VctAns".
Vector calculation...calculated using the
specified Start, End, and Step values, as well as the values obtained when each x-value is substituted in the function f(x). • Note that changing... the input/output format settings (Math format or Linear format) on the calculator...Vector Calculations (...
User Guide - Page 72
...; Action • Specify the dimension of the matrix or vector and then perform the calculation again. • Check the dimensions specified for the matrices or vectors to perform your calculation. • Action
• Narrow the table calculation range by changing the Start, End, and Step values, and try again. Note that is close to...
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