# Rational.Inequality Operator (Rational, Double)

**Solver Foundation 3.0**

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Returns a value that indicates whether a rational number is not equal to a double.

**Namespace:**Microsoft.SolverFoundation.Common

**Assembly:**Microsoft.Solver.Foundation (in Microsoft.Solver.Foundation.dll)

#### Parameters

- rat
- Type: Microsoft.SolverFoundation.Common.Rational

A rational value.

- dbl
- Type: System.Double

A double value.

#### Return Value

Type: System.Booleantrue if the rat parameter is not equal to the dbl parameter; otherwise, false.

- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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