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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

ShivamS
2013-06-18 23:15:57

Thanks!

bobbym
2013-06-18 23:15:28

Hi;

Very good!

ShivamS
2013-06-18 22:29:31

We got our results today and I got everything right (98%) except the vector calculus one and another question.

bobbym
2013-05-27 22:59:02

Thanks a lot Stefy; the midterm exam went extremely well.

Congratulations!

ShivamS
2013-05-27 22:37:55

I just messed up on a vector calculus question (carrying 4 marks) which was, according to me, the hardest question on the exam. Funny thing is, after I went to my dorm, I solved it in less than 15 minutes.

anonimnystefy
2013-05-27 22:35:04

Hi Shivamcoder3013

I am very glad that it is so! smile

ShivamS
2013-05-27 22:29:46

Thanks a lot Stefy; the midterm exam went extremely well.

ShivamS
2013-05-24 22:10:37

http://en.wikipedia.org/wiki/Vector_potential

But thank-you anyways.

anonimnystefy
2013-05-23 22:54:22

I don't think I know what the potential of a vector is.

ShivamS
2013-05-23 22:28:53

Okay, thank you very much. I have some more but I will post them later. Actually, here are some vector calculus questions:

Determine if the vector field f(x, y,z)= x yzi+xzj+x yk has a potential in R3

I am getting that it does not have the potential.

anonimnystefy
2013-05-23 00:19:11

I think all three are correct.

ShivamS
2013-05-22 23:41:58

Oh, okay. Thank-you. The second one is a bit more complicated.

anonimnystefy
2013-05-22 23:40:38

Yeah, I took g to be 10m per second squared. I am getting approximately 24.525mps with g=9.81m per second squared.

ShivamS
2013-05-22 23:37:42

25m is 82 feet so did you simply approximate something?

anonimnystefy
2013-05-22 23:35:16

Ah, so we are both correct on the initial velocity for the one in post #7.

Let me look at the second one.

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