Control objects:

Current     : Element number n in the Fourier Serie
All         : All the N elements in the Fourier Serie
Sum         : Sum of all the N elements in the Fourier Serie

Function    : The actual function
Sample Show : Show the sample points
SampleMin   : The minumum number of sample points
Sinc        : The Sinc function
Formula     : Formula (Function, Fourier Serie, Sinc function)

n =         : Element number in the Fourier Serie
N =         : Upper limit of the number of elements in the Fourier Serie

Reset       : Reset the application
                          
w           : Factor in the frequency of the function elements
W           : Current sample frequency