Graph Simple Pulse function in matlab HELPPPPPPPPPPPPP PLEASE

Consider a pulse function of time duration 0 to T which is half of a sine wave:

x(t) = 0 t < 0

x(t) = Asin(pi*t/T) 0 < t < T

x(t) = 0 t > T

Calculate the Fourier transform of this pulse. For A=1 and T=1 (sec) plot the magnitude of X(f) versus f.

*I just need the matlab code. Thank you****

[Walter Roberson]

Just the MATLAB code? You mean we can skip the comments and the descriptions of what we are doing and you promise not to ask questions about how it works?

[Oleg Komarov]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

Answer 1

[Walter Roberson]

Just the MATLAB code.

f = linspace(-50,50,301);
t1 = pi .^ 2;
t4 = -pi - (2 .* f);
t5 = exp((-1*i) .* t4);
t12 = exp((i) .* (f + pi ./ 0.2e1));
t17 = sqrt((0.2e1 .* t1) + t1 ./ t12 .* ((i) + (-1*i) .* t5));
t18 = f .^ 2;
t20 = abs(-0.2e1 .* t1 + (2 .* t18));
t23 = 2 ./ t20 .* t17;
plot(f, t23);

[Jan]

Perhaps the OP does not ask for details. I promise, I will not ask, too.

Btw, the code works well, if you rename all "t4" to "t2".

[Walter Roberson]

The calculation was a bit on the Heavy Side.