Improved the fftTest. Added some convenience methods:
e.g. calcPolar (with threshold)
Now amplitude and angle are checked.
Wolf, Keidel
Modified Files:
src/java/de/fhworms/ztt/mepros/DoubleMath.java
test/src/java/unit/de/fhworms/ztt/mepros/DoubleMathTest.java
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