Question: Describe the matrix * R = Q ( remember that t ^ Q = Q ) . third. It is proved that QIR = 1

Describe the matrix

*

=

(

remember that t

^

=

) .

third. It is proved that QIR

= 1 /

.

Explain how the above properties can be used to calculate the inverse Fourier transform efficiently. The algorithm must be written and explain why its correctness follows from the above sections.

(

The

(

normal

)

FFT can be used without writing its code.

)

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