FFT, Rounding, Conversions, Accurate Muls
Accurate mul, FFT, rounding ...

mulc (more accurate mul on complex)
Common definitions (time, has double representation, freq)
Corrected rounding and new definitions
Type level addition for 15 + n
Bug for saturation functions
amul more general
Conversion restricted (the too general definition was wrong)
Bug correction in Num for fixed 32 and 40
uniformSamples more general
Plot can use any unit for "time"
Test using new spectrum function
FFT algorithms
Fixed point implementation of the FFT
New spectrum function for plotting