Calculate a sine & save as wave

Calculate a sine vector including harmonics. Save as wave file.

Produce a sine vector including harmonics. Different intensities for harmonics are possible. Control duration and sample rate. Save sine vector as a wave file.

Intensities are weighted according to number of harmonics. Vector is normalized to a range of -1:1.

Variables:
frequency in Hertz [f0, f1, f2, etc.]
0 < intensity < 1 [i1, i2, i3, etc.]
duration in milliseconds

optional variables:
play = 'playon' / 'playoff'
save = 'saveyes' / 'saveno'
where_name = directory + name w/o '.wav'ending