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# Fourier Transform Question Watch

1. Hi, it's just to ask for some help with transforming some initial conditions for a PDE question. Just a bit unsure how to do it although I think it must be really simple...
The fourier transform of,

u(x,0) = 1, if 1 <=x<=2, 0 otherwise

Thanks for any help.
2. The fourier transform of the indicator function of an interval is given by , which you can check is exactly (with the obvious extension at z = 0).
3. (Original post by BlueSam3)
The fourier transform of the indicator function of an interval is given by , which you can check is exactly (with the obvious extension at z = 0).
thank you very much

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