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# inverse

A Boolean-valued parameter that defines the phase factor sign for Fourier transforms.

```
var inverse: Bool { get set }
```

## Discussion

When set to `YES` graph uses the positive phase factor: `exp(+i 2Pi mu nu / n)`, when computing the (inverse) Fourier transform.
Otherwise MPSGraph uses the negative phase factor: `exp(-i 2Pi mu nu / n)`, when computing the Fourier transform.
Default value: `NO`.

---

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