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# Wavefunction question Watch

1. I have a question that says;

A particle living in one spatial dimension has a wavefunction (function f(x) in this case) given by;

It asks me to find the normalisation constant, so I ASSUMED you would take limits over infinity and minus infinity and integrate , with that equal to one. If I do this I get

= 1 with limits infinity and minus infinity.

As you can tell, that answer just gives me zero on the left hand side. What exactly am I meant to do?
2. You need to consider x > 0 and x <0 separately.
3. (Original post by Scipio90)
You need to consider x &gt; 0 and x &lt;0 separately.
Right, do you mean integrate with limits infinity to 0, and 0 to minus infinity then add them together? I've checked that and it still gives me zero <_>;
5. (Original post by Scipio90)
limits infinity and 0 is;

limits 0 to minus infinity is;

Which added together just becomes zero.
7. (Original post by Scipio90)
Aye, the previous question asked me to sketch the wave equation. It's reflected in the y-axis meaning the area should be double of what is on either side. But why am I getting zero :|. I have a feeling that the integration of e^-2|x|/a is different to what I've put.
8. Aye yes, my integral is wrong. I'll have it sorted soon. Thanks a lot for your help

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Updated: December 14, 2010
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