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Decimal Exponents
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Author:  searchman52 [ Thu May 21, 2009 4:09 pm ]
Post subject:  Decimal Exponents

I think my head is about to blow up. How do you solve decimal exponents? I've seen plenty of solutions, but they're too darn complicated. Help, please?

Note: This is mainly a extra credit project, not homework.
Another Note: I'm in 8th grade.

Author:  Poe [ Thu May 21, 2009 5:04 pm ]
Post subject:  Re: Decimal Exponents

Can we see an example so we know the complexity of the numbers?

Author:  Serpentsounds [ Thu May 21, 2009 5:10 pm ]
Post subject:  Re: Decimal Exponents

Change the decimal to a fraction, then evaluate the fractional exponent as power over root.

For example, 16 ^ .75

We change .75 to a fraction, 3/4. 3/4 is power/root, so we take the 4th root of 16, and raise it to the 3rd power.
(16^(1/4))^3 = 2^3 = 8

Author:  Poe [ Thu May 21, 2009 5:17 pm ]
Post subject:  Re: Decimal Exponents

^ Wow I did that this year and I didn't remember it. FAIL.

Also, you can use a calculator. :P

Author:  searchman52 [ Thu May 21, 2009 6:28 pm ]
Post subject:  Re: Decimal Exponents

Serpentsounds wrote:
Change the decimal to a fraction, then evaluate the fractional exponent as power over root.

For example, 16 ^ .75

We change .75 to a fraction, 3/4. 3/4 is power/root, so we take the 4th root of 16, and raise it to the 3rd power.
(16^(1/4))^3 = 2^3 = 8


THANK YOU. I actually friggin' understand this. I am in your debt. Someone may lock this now if they wish, or leave it open for the future.

Author:  Jigglypuff [ Thu May 21, 2009 11:04 pm ]
Post subject:  Re: Decimal Exponents

e^(2?i)

That's all I've got to say on fun with exponents.

Author:  JsXtm [ Thu May 21, 2009 11:07 pm ]
Post subject:  Re: Decimal Exponents

Jigglypuff wrote:
e^(2?i)

That's all I've got to say on fun with exponents.


Jiggz... why're you bringing in the complex numbers? ;)

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