Question about Casio FX-115ES Scientific Calculator

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What does the keys on my scientific calculator mean

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They are all described in the manual that accompanied your calculator. If you've misplaced the manual, you can download it and the appendix from the manufacturer's web site at
http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Posted on Nov 15, 2010

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What does deg in display on ti-30x mean


It means the calculator is current set to the degrees mode. Trigonometric function depend on how you measure the angle. The most common units are degrees, radians, and grads. To change the mode on the 30Xa, press the DRG key to cycle through them.

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Where is y2 key and +/- key


Do you mean x^2 (x-squared)? That's to the left of the "7" key.

The change-sign key is marked "(-)" and is to the right of the decimal point key.

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Where is the exponent key on the 531x


If you mean the key to raise a number to an exponent, it's the key marked "y^x", two keys above the "7" key. If you mean the key to enter an exponent of ten, it's the key marked "Exp", just above the "7" key.

Feb 18, 2013 | Sharp el-531x scientific calculator

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How to I stop my sharp EL-531X calculator from rounding when converting from decimal to scientific notation?


You need to select the number of decimal places you would like, or if you would like the calculator to behave as normal. Press SET UP and select FSE (press 1) . You now have 5 options.
0: FIX means you can choose a fixed number of decimal places for every calculation.
1: SCI means scientific notation and choose the number of significant values you would like to deal with.
2: ENG means engineering and the power goes up in multiples of 3.
3: NORM1 and 4: NORM2 are the usual or normal settings on the calculator. Most school calculations will use NORM1 mode.

Aug 28, 2012 | Sharp El-531x Scientific Calculator Green...

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Casio FX-115ES Scientific Calculator


I have done the calculation using the the shortcut key [x10^X] to enter the exponent,and I got the correct result.
I also did the calculation by explicitly typing the 10^10 factor and I obtained the correct result.
The syntax error may come from your using the minus - sign for subtraction rather that the change sign key (-)

Apr 06, 2012 | Casio FX-115ES Scientific Calculator

1 Answer

How do I do exponents on this calculator?


Two keys can be used to enter negative exponents on the TI-30Xa scientific calculator; the [y^x] key or the [EE] key. The [y^x] key is used for all exponents while the [EE] key is used for scientific notation only.
The examples below will demonstrate how to use both keys:

1) Entering 7^-2.

• Press [7] [y^x] [2] [+/-] [=].
• The calculator will display: 0.20408163.
2) 1*10^-3.

• Press [1] [EE] [3] [+/-] [=].
• The calculator will display: 0.001

Sep 18, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

What is RCL ?


If it shows up on the display, it means the calculator is standing by for input of a variable name to recall the variable's value. If you mean the key, that's the key used to recall a variable from memory.

Nov 06, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How do I find the square root of a number? and how do I enter scientific equations?


For square roots, use the square root key just to the left of the divide key. For example, 4 square-root = will give you 2.

The calculator doesn't have any way to store equations, scientific or otherwise. If you mean scientific notation, use the EE key just above the 7 key to enter exponents. For example, to enter 1.23x10^6, press 1 . 2 3 EE 6. For negative exponents, make sure to use the +- key to the right of the decimal point instead of the - key.

Sep 22, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Inputing Scientific Numbers


If you mean using the "EE" key it's straightforward.

To enter scientific numbers, enter the number, then press EE, then the exponent value. The TI-30XA will stay in scientific display until you "clear" or turn it off. It will also switch to scientific notation if you multiply big numbers that exceed the display.

E.g. Input 3, EE, 10, X, 3, EE, 10, =, gives you the answer 9 times 10 to the power 20. Press the "square root" key and you will get back 3 times 10 to the power 10.

You can mix entries too, e.g. 3, EE, 10, X, 2, =, gives you 6 times 10 the power 10....

Nov 29, 2008 | Texas Instruments TI-30XA Calculator

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