# Complex.Inequality(Complex, Complex) Operator

## Definition

Returns a value that indicates whether two complex numbers are not equal.

```
public:
static bool operator !=(System::Numerics::Complex left, System::Numerics::Complex right);
```

`public static bool operator != (System.Numerics.Complex left, System.Numerics.Complex right);`

`static member op_Inequality : System.Numerics.Complex * System.Numerics.Complex -> bool`

`Public Shared Operator != (left As Complex, right As Complex) As Boolean`

#### Parameters

- left
- Complex

The first value to compare.

- right
- Complex

The second value to compare.

#### Returns

`true`

if `left`

and `right`

are not equal; otherwise, `false`

.

## Remarks

The Equality method defines the operation of the inequality operator for complex numbers. It enables code such as the following:

```
Complex c1 = new Complex(12.6, 4.3);
Complex c2 = new Complex(11.1, 8.9);
if (c1 != c2)
```

```
Dim c1 As New Complex(12.6, 4.3)
Dim c2 As New Complex(11.1, 8.9)
If c1 <> c2 Then
```

Languages that do not support custom operators can test for inequality by calling the Equals(Complex) method and reversing its value.

Note that, because of differences in precision, two complex numbers that are apparently equivalent can be considered unequal. One possible workaround is to implement a comparison method that returns `true`

only if the difference between the two real and imaginary parts of the complex numbers exceeds a certain threshold (such as .01% of the value of the real or imaginary component of one of the complex numbers). For more information, see the Equals(Complex) method.