Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 522)

Define this expression as a function by using function DEFINE („à). Then,

plot the continuous spectrum, in the range 0 < ω < 10, as:

Definition of Fourier transforms

Different types of Fourier transforms can be defined. The following are the

definitions of the sine, cosine, and full Fourier transforms and their inverses used

in this Chapter.

Fourier sine transform

Inverse sine transform

Fourier cosine transform

Inverse cosine transform

Fourier transform (proper)

Inverse Fourier transform (proper)

– Determine the Fourier transform of the function f(t) = exp(- t), for t

>0, and f(t) = 0, for t<0.

)()}({ dtttfFtfs

)sin()()()}({ dttFtfF

)()}({ dtttfFtfc

)cos()()()}({ dttFtfF

⋅⋅⋅== dtetfFtf

⋅⋅⋅== dteFtfF

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