Question about Casio FX-115ES Scientific Calculator

To enter decimal exponents, use the x10^x key below the 3, followed by the exponent. For example, to enter one million, press 1 x x10^x 6 and see 1000000 (actually, the leading one is optional: if you press x10^x without a value, the calculator will supply a 1).

To raise a value to a number, use the x^ key above the sin, followed by the exponent. For example, to calculate 2^3, press 2 x^ 3 = and see 8.

Posted on Sep 07, 2010

Hi,

a 6ya expert can help you resolve that issue over the phone in a minute or two.

best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).

click here to download the app (for users in the US for now) and get all the help you need.

goodluck!

Posted on Jan 02, 2017

If by power, you mean exponents, there are several rules.

Multiplication with the same base - add the exponents

Division with the same base - subtract the exponents

Exponent to an exponent - multiply the exponents

Negative exponent - 1 over the same number to the positive exponent

Zero exponent - anything to the exponent 0 is 1

Good luck,

Paul

Multiplication with the same base - add the exponents

Division with the same base - subtract the exponents

Exponent to an exponent - multiply the exponents

Negative exponent - 1 over the same number to the positive exponent

Zero exponent - anything to the exponent 0 is 1

Good luck,

Paul

Jan 26, 2016 | Casio ClassPad 300 Calculator

Use the y^x key (two keys up from the 7 key). For example, to calculate 8^9, press 8 y^x 9 =

Feb 04, 2014 | Sharp Office Equipment & Supplies

To enter exponents (1, 2, 3, -3..) use the general power key marked with Y^x or X^y or ^. Enter the base press the general power key then the exponent. If exponent is negative try enclosing it in parentheses. use the change sign key (-) to enter the negative sign before the exponent.

To enter power of 10, you can use the shortcut key marked Exp (the 10 must not appear when the Exp is used to enter exponents for power of 10).

To enter power of 10, you can use the shortcut key marked Exp (the 10 must not appear when the Exp is used to enter exponents for power of 10).

Feb 24, 2013 | Sharp Office Equipment & Supplies

The EE (or x10^x on Casios) does give a syntax error if you use it with decimal exponents, but the expressions do calculate correctly if you use the full expression with the general power key. The EE key is a shortcut and may have been designed to accept only integer values for the exponents.

I tried that on Casio and the TI calculators.

I tried that on Casio and the TI calculators.

May 08, 2012 | Texas Instruments TI-84 Plus Silver...

To rewrite an expression with positive exponents, you must use the identities

1/a^n=a^(-n) and 1/a^(-n)=a^n

Example: a^(-3)=1/(a^3)

1/(a^(-4))=a^(-(-4))=a^4

To convert a whole expression, you scan it for negative exponents and start changing them one a time, until you get only positive exponents.

Depending on the expresiion you are dealing with you may have to use other rules, such as (a^n)^m= a^(n*m)

1/a^n=a^(-n) and 1/a^(-n)=a^n

Example: a^(-3)=1/(a^3)

1/(a^(-4))=a^(-(-4))=a^4

To convert a whole expression, you scan it for negative exponents and start changing them one a time, until you get only positive exponents.

Depending on the expresiion you are dealing with you may have to use other rules, such as (a^n)^m= a^(n*m)

Mar 30, 2012 | Office Equipment & Supplies

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

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

Use the (-) key for negative numbers (not just exponents) instead of the - key. The - is to subtract one value from another, (-) is to input a negative value.

Sep 09, 2010 | Texas Instruments TI-30XA Calculator

Hello,

The calculator applies the rules during the internal calculations. But all it shows you is the (final) result. It does not keep track of what exponents you used to get to the result. It is not capable of doing symbolic manipulations.

Hope you are not too disappointed.

The calculator applies the rules during the internal calculations. But all it shows you is the (final) result. It does not keep track of what exponents you used to get to the result. It is not capable of doing symbolic manipulations.

Hope you are not too disappointed.

Apr 22, 2009 | Casio FX-300MS Calculator

Hi Loringh,

see, high exponents are +ve powers, while low exponents are -ve powers.

e.g. for 1200000=1.2X10^6=1.2E+6 (high exponents)

for 0.0000000012=1.2X10^-9=1.2E-9 (low exponents)

I think so easy ?

Thanks

Zulfikar Ali

ali_zulfikar@yahoo.com

9899780221

see, high exponents are +ve powers, while low exponents are -ve powers.

e.g. for 1200000=1.2X10^6=1.2E+6 (high exponents)

for 0.0000000012=1.2X10^-9=1.2E-9 (low exponents)

I think so easy ?

Thanks

Zulfikar Ali

ali_zulfikar@yahoo.com

9899780221

Dec 12, 2008 | SoftMath Algebrator - Algebra Homework...

the Xy button, 10 Xy 2 = 100 (10 x 10)

to do a neg exp you have two options, one use brackets if calculator has them.....

10 Xy (-2) = 0.01

or two inverse your number, ie: make 10 into 1/10th, use fraction entry on calculator.

1/10 Xy 2 = 10 Xy (-2) = 0.01

to do a neg exp you have two options, one use brackets if calculator has them.....

10 Xy (-2) = 0.01

or two inverse your number, ie: make 10 into 1/10th, use fraction entry on calculator.

1/10 Xy 2 = 10 Xy (-2) = 0.01

May 31, 2008 | Casio FX-300MS Calculator

257 people viewed this question

Usually answered in minutes!

×