The pulse f(t) is shown opposite.
It has a discontinuity in f(t)
at t = +T/4 a discontinuity in the derivatives of f(t)
at t = 0.
In this case the pulse is neither even or odd so both coeffients
a_{n}
and
b_{n}
in the Fourier series must be calculated. A plot of the even coefficients a_{n} and the odd coefficients b_{n} is shown opposite. 
