Algebra problem
- Thread starter Joystar77
- Start date
You do realize that this is incomprehensible. Is the E supposed to be a sigma? If so, you can say something like
the sum of _ from 1 to n. but what is k? What is O? We are not mind readers.
Joystar77,
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Response to Algebra Problem
Dear JeffM,
I am not familiar with the math terms and am being honest. I hope that I can write it out better so there is a more clear understanding of what the problem should be. Here it is as follows:
n
Show that f : N ---> N, f (n) = E i (k on top kind of like squared or cubed) is O (x cubed).
i=1
Sorry I couldn't write the symbol out on here so to me it almost looks like an E except with the middle cut off and curved on the ends. I think it is called a sigma if I am not mistaken.
Dear JeffM,
I am not familiar with the math terms and am being honest. I hope that I can write it out better so there is a more clear understanding of what the problem should be. Here it is as follows:
n
Show that f : N ---> N, f (n) = E i (k on top kind of like squared or cubed) is O (x cubed).
i=1
Sorry I couldn't write the symbol out on here so to me it almost looks like an E except with the middle cut off and curved on the ends. I think it is called a sigma if I am not mistaken.
Rules about posting
I have read these rules about posting and will try to show what I have done in the problems.
I have read these rules about posting and will try to show what I have done in the problems.
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If your class has yet to cover the terms, I fail to understand how you're expected to complete the homework. You may want to have a serious talk with your academic adviser.
OK It is a capitalized sigma, a Greek letter equivalent to "s" and representing the concept of summation. Is the O supposed to be a zero? If so please use 0 rather than O.
Is this the problem \(\displaystyle f(k) = \displaystyle \sum_{i=0}^ki^3.\)
The sigma stuff can be written out in English as the sum from 0 through k of i cubed.
Do you understand what \(\displaystyle \mathbb N \rightarrow \mathbb N\) means?