Question about Sharp EL-733A Calculator

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Re: manual

Here's the link for the manual; Check page 5 - top right - the dot is a "good battery indicator" Hope this helps :)

Posted on Sep 05, 2007

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Get rid of comma,

To switch the radix mark between the US and European modes, turn the calculator on, then press and release SHIFT, then press and release the decimal point key. You'll note that the shifted function of the key is marked "./," which should serve as a reminder that this functions switches between comma and dot.

Feb 15, 2012 | HP 10bII Calculator

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Wont Display Anything , Black Screen !

The screens brightness might be set to the lowest number as a joke. Try to change that.

Dec 09, 2011 | Texas Instruments TI-84 Plus Silver...

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What are the parts of casio calculator My manual is 75 pages. I can email it to you. Please put Casio FX-115ES as the subject. Awaiting your response.

fx-115ES User's Guide
About this Manual
• The MATH mark indicates an example that uses Math format,
while the LINE mark indicates Linear format. For details about
input/output formats, see "Specifying the Input/Output Format".
• Keycap markings indicate what a key inputs or what function it
Example: 1, 2, +, -, !, A, etc.
• Pressing the 1 or S key followed by a second key performs
the alternate function of the second key. The alternate function is
indicated by the text printed above the key.
• The following shows what the different colors of the alternate
function key text mean.
If key marking
text is this color: It means this:
Press 1 and then the key to access
the applicable function.
Press S and then the key to input the
applicable variable, constant, or symbol.
Purple (or enclosed Enter the CMPLX Mode to access the
in purple brackets) function.
Green (or enclosed Enter the BASE-N Mode to access the
in green brackets) function.
• The following shows an example of how an alternate function
operation is represented in this User's Guide.
Indicates the function that is accessed by the key
operation (1s) before it. Note that this is not part
of the actual key operation you perform.
Keycap function s
Alternate function

Jan 19, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

My son has a TI-84 Plus calculator and it is completely frozen. There is a message on the screen that reads " RAM cleared". Below that message it says "Press ALPHA F1-F4 to locate shortcut menus" but it...

The calculator OS has been upgraded to the version 2.53 MP.
For this version, whenever you remove batteries (or replace them) and turn calculator ON, you are reminded to Press [ALPHA][F1-F4] to locate Shortcuts Menu.
The calculator also asks the user to press either
[1:Do NOT show Again]

Here is what these cryptic messages mean.

Certain functions implemented on the new OS are available by pressing the [ALPHA] key followed by F1, F2, F3 or F4.
Since you may forget how to get to them, the calculator gently reminds you that there are other functions accessed only by pressing the [ALPHA] key.
It also gives you the option to flash the reminder every time the calculator memory is reset (CONTINUE) or NOT to SHOW the REMINDER again.

Usually after the RAM cleared message, press [2:Continue] or any other key but [1: ] to keep being reminded how to access the new functions.
Once a key is pressed the screen is cleared and you have the solid blinking cursor.

Oct 06, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do I stop getting the synthx error

The calculator will stop screaming out SYNTAX ERROR, when you stop ordering it to do things the wrong way.
Take a look at the manual.
For certain calculations you enter the number first and then press the function key.
For others, you press the function key then the number.
If an expression contains a left parenthesis, it must also have a closing right parenthesis.
It you want to enter negative 5, you use the change sign (-) not the regular MINUS sign.
These are exemples of instances where you get a syntax error. For every new type of calculation you have to perform, read the exemple in the manual to find out which must be entered first: the number or the function.
Hope it helps.

Sep 30, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

How to change a fraction into a decimal

This is a partial solution for I do not have the TI89 titanium with me.
1. The easiest way is to insert the decimal mark (. dot or , comma) at the end of one of the elements of the fraction (numerator or denominator).

Ex: if you enter 1/2 the calculator displays the fraction 1/2, but if you enter 1./2 or 1/2. or 1./2. it displays 0.5

2. You can also configure the EXACT/APPROXIMATE mode option of the calculator ( Press Mode then scroll till you see exact/approximate) then choose AUTO, EXACT, or APPROXIMATE.

In the EXACT option the calculator will perform exact algebra ( Pi remains Pi not 3.14159... ).
In the APPROXIMATE option, calculations are performed numerically (everything is treated as a decimal number.)

In the AUTO option the calculator will try its best to keep the results as exact as possible :
x/6 + 1/2 yields x/6 + 1/2
x/6. + 1/2 becomes .166666..x +1/2
x/6. + 1./2 becomes .16666..x +0.5

My suggestion ( if you allow me) : Leave the calculator set on AUTO, and convert to decimals as needed by putting the decimal mark at the end of an integer.

I hope it helps.

Jul 22, 2009 | Casio FX-115ES Scientific Calculator

1 Answer


I am afraid I am missing something here. You can start with the expression of a function and have it graphed on a graphing calculator.
Or you can enter the experimental data, represent them on a graphing calculator and ask the calculator to find the curve that fits the data best, and once that curve is found to give you the equation.
However your calculator does not have the graphing capabilities. All you can do is enter the data and ask the calculator to perform a regression to obtain the expression of the function that fits best.

The available options for the calculator are accessible by pressing [MODE][3:Stat] and
2. A+BX linear
3: _+cX^2 quadratic
4: ln X logarithmic
5: e^X exponential
6:A*B^X power
7: A*X^B Polynomial
8: 1/X

Hope it helps.

Apr 14, 2009 | Casio fx-300ES Calculator

1 Answer

Lost L2 on the stat edit function

Go into the STAT:EDIT function and Highlight L3. Push 2nd DEL (INSERT), and Put L2 back in. If there was data in List 2, it should reappear.

Mar 08, 2008 | Texas Instruments TI-83 Plus Calculator

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