- #1
Sagekilla
- 19
- 0
As my title says, I need to take only the positive square root of some evaluation. For my calculation, the negative square root is extraneous.
What I do is a normalization of a wave function:
My only problem is those above expression will give me A = {-1/sqrt(2), 1/sqrt(2)}.
How can I force Mathematica to only give me positive square root?
What I do is a normalization of a wave function:
Code:
J = Integrate[Psi[x]^2, {x, 0, a}]
sol = Solve[J == 1, A]
A /. sol
How can I force Mathematica to only give me positive square root?