Understanding Θ-notation

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arnob
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Understanding Θ-notation

Unread post by arnob » Sun Jan 06, 2013 9:03 pm

$\frac{n^{3}}{1000}-100n^{2}-100n+3$ in terms of Θ-notation .... will it be just Θ($n^{3}$)

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*Mahi*
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Re: Understanding Θ-notation

Unread post by *Mahi* » Sun Jan 06, 2013 10:46 pm

arnob wrote:$\frac{n^{3}}{1000}-100n^{2}-100n+3$ in terms of Θ-notation .... will it be just Θ($n^{3}$)
Yes.
An easy way to understand is if $f(n) = \frac{n^{3}}{1000}-100n^{2}-100n+3$ then $\lim _{n \rightarrow \infty }\frac {f(n)} {n^3} = 1$
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SANZEED
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Re: Understanding Θ-notation

Unread post by SANZEED » Sun Jan 06, 2013 11:20 pm

Er-can anyone give me a simple explanation about the notation here?
And Mahi vai,what is $x$?
:oops: :oops: :?
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Re: Understanding Θ-notation

Unread post by *Mahi* » Sun Jan 06, 2013 11:29 pm

SANZEED wrote:Er-can anyone give me a simple explanation about the notation here?
And Mahi vai,what is $x$?
:oops: :oops: :?
That was a typo, edited now, thanks.
And this should be good enough.
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