# Fourier Transformation : Even Function

A function h(x) is positive or zero for all values of x. Assume h(x) is even. If the Fourier transformation of h(x) is H(u) show that...

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Q:

A function h (x) is positive or zero for all values of x. Assume h(x) is even .If the Fourier transformation of h(x) is H(u) show that,

For all u,

|H(u)| <= |H(0)|

(Note <= mean less than equal to)

Show that as

Solution:

Let's consider the Fourier transform of a function h(x):

( 1)

where function h(x) must comply with the condition

( 2)

(otherwise the integral (1) doesn't exist)

In general, (u) is a ...

#### Solution Summary

The Fourier Transformation of an Even Function is investigated. The solution is detailed and well presented.