Need help integrating? Format Help?

  • Thread starter bmb2009
  • Start date
  • #1
bmb2009
90
0

Homework Statement


This may seem like a strange question but I need help putting and integral into wolfram alpha/mathematica. I have to find <x>, <x^2>, <p>, and <p^2> for a given wave function. I know the formulas for all these values but the wave function is ψ(x,t)= Axe^[-x^2 ((sqrt(km))/2h)]*e^[-3it/2(sqrt(k/m))]

so the partial derivatives are long and hard for me to format...ive been trying to input this equation and its derivatives for almost an hour now and can't get a compatible format.. anyone able to help? or maybe there is a way to reduce the notation or does something cancel out? thanks

Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
Bryson
56
2
My statement is most likely moo, but why not solve it by hand?
 
  • #3
Bill Simpson
1,070
30
I suspect the question isn't worded clearly enough for me to be certain this is what you are really looking for.

Perhaps this will help with your notation problem

http://www.wolframalpha.com/input/?...2+(Sqrt[k+m]/2h))*e^(-3+i+t/2(Sqrt[k/m]))+,x]

But I'm guessing there still are not correctly placed () in that somewhere.

If you can provide a more detailed and clear question of exactly what you are looking for then perhaps I can provide a more relevant hint
 
Last edited:
  • #4
Bryson
56
2
Solving equations like this in Wolfram is a fools errand. You have to use your noggin!
 
  • #5
D H
Staff Emeritus
Science Advisor
Insights Author
15,415
687
You have to use your noggin!
Or you won't learn. This problem is set up to be easy to do by hand.
 
  • #6
Bryson
56
2
I cannot argue with that!
 

Suggested for: Need help integrating? Format Help?

  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
4
Views
1K
Replies
0
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
0
Views
6K
  • Last Post
Replies
0
Views
1K
  • Last Post
Replies
0
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
0
Views
914
  • Last Post
Replies
4
Views
2K
Top