## IFFTSHIFT Inverse Shift FFT Output

Section: Transforms/Decompositions

### Usage

The`ifftshift`

function shifts the DC component (zero-frequency)
of the output from the center of the array back to the first position
and iseffectively the inverse of `fftshift`

. For vectors
this means swapping the two halves of the vector. For matrices,
the first and third quadrants are swapped. So on for N-dimensional
arrays. The syntax for its use is
y = ifftshift(x).

Alternately, you can specify that only one dimension be shifted

y = ifftshift(x,dim).