Question about Sharp EL-2630P Calculator

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Non functioning number key

One of the number keys (#6) does not function; for example, if I enter a number which includes a 6, the six does not get entered

what might I do to reactivate this key?

thank you

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Probably just need to resolder the switch for #6, should just need to have the soldering iron touch the solder to re melt it. worth a try.

Posted on Mar 09, 2008

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1 Answer

What is the square root of 30?

We are asking what number, times itself, is equal to 30. Five times itself is 25. Six times itself is 36. The answer is somewhere between 5 and 6. Let's split the difference and try 5.5. 5.5 times 5.5 is 30.25. This is above 30, so let's try a smaller number, 5.4. 5.4 times 5.4 is 29.16. This is lower than 30, so we need a higher number. How about 5.45? I get 29.7025. We need a number a little higher. How about 5.47? I get 29.9209. Still need a little higher. How about 5.48? 30.0304. So it is somewhere between 5.47 and 5.48.

On a calculator, you can use the square root function. Sometimes you have to enter the number before you hit the square root function and sometimes you need to enter the number after hitting the square root function. Another way of doing it is to use the exponent function, usually with a y to the x key or a ^ key. Enter 30, hit the exponent key, and then enter 1 divided by 2 in brackets.

I get approximately 5.477225575051661134569697828008.

Good luck.


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1 . 6 [Exp] +/- 19 [=]

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Use nPr, which is the shifted function of the multiply key. For example, to find the number of permutations of six items taken three at a time, press 6 SHIFT nPr 3 =

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Mar 09, 2011 | Texas Instruments TI-89 Calculator

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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

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How do I find logarithms on the ti89?

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Sharp Calculator EL2630

apply a dry contact cleaner over the defective key and press it many times until it becomes fine if this does not work will.
please follow me:-1- use a *****driver and get out *****s in the bottom(normally 4-5 *****)2-open the machine you will find the keyboard and many small *****s remove all with small *****driver.
3-remove key bad out and clean it with water-dry it carefully and return it back put all *****s back and test your calculator.

Mar 05, 2008 | Sharp EL-2630P Calculator

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