(adsbygoogle = window.adsbygoogle || []).push({}); WKB theory?? Pls help

1. The problem statement, all variables and given/known data

WKB theory and WKB approximation. Are they same??

2. Relevant equations

I have to do a presentation about WKB theory in Physics (Quantum mechanics) but I dont know how to start from the WKB theory and come to WKB approximation. i.e. I don't find a direct connection. I know WKB theory is a method of solving differential equation but I do not know how to use it to solve any differential (well..2nd order) equation. It means I do not understand what WKB theory is (the basics) :( :(

3. The attempt at a solution

I tried to google and find the answer but did find a good explanation. I greatly appreciate if you can help me to understand this issue as this is vital to pass this course. Thanks.

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# Homework Help: WKB theory? Pls help

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