The pulse considered is shown opposite. The function
f(t)
has a discontinuity at T/4 and a discontinuity in its derivates at t = 0
and
is given by f(t) = 4t/T for 0 £ t £ T/4 and zero elsewhere. Pulse is periodic with period equal to T. 

Since this function is neither even or odd then both coefficients a_{n} and b_{n} in the Fourier Series must be calculated using the expressions below.  


Substituting f(t) into the above expressions give the equations opposite. 

