Extreme Optimization™: Complexity made simple.

Numerical Components
for .NET
  • Home
  • Features
    • Math Library
    • Vector and Matrix Library
    • Statistics Library
    • Performance
    • Usability
  • Documentation
    • Introduction
    • Math Library User's Guide
    • Vector and Matrix Library User's Guide
    • Statistics Library User's Guide
    • Reference
  • Resources
    • Downloads
    • QuickStart Samples
    • Sample Applications
    • Frequently Asked Questions
    • Technical Support
  • Blog
  • Order
  • Company
    • About us
    • Testimonials
    • Customers
    • Press Releases
    • Careers
    • Contact us
Introduction
Deployment Guide
Using Parallelism
Expand Mathematics Library User's GuideMathematics Library User's Guide
Expand Vector and Matrix Library User's GuideVector and Matrix Library User's Guide
Expand Statistics Library User's GuideStatistics Library User's Guide
Expand ReferenceReference
  • Home
    • Features
    • Solutions
    • Documentation
    • QuickStart Samples
    • Sample Applications
    • Downloads
    • Technical Support
    • Download trial
    • How to buy
    • Blog
    • Company
    • Resources
  • Documentation
    • Introduction
    • Deployment Guide
    • Using Parallelism
    • Mathematics Library User's Guide
    • Vector and Matrix Library User's Guide
    • Statistics Library User's Guide
    • Reference
  • Reference
    • Extreme.Mathematics Namespace
    • Extreme.Mathematics.Algorithms Namespace
    • Extreme.Mathematics.Calculus Namespace
    • Extreme.Mathematics.Calculus.OrdinaryDifferentialEquations Namespace
    • Extreme.Mathematics.Curves Namespace
    • Extreme.Mathematics.Curves.Nonlinear Namespace
    • Extreme.Mathematics.EquationSolvers Namespace
    • Extreme.Mathematics.Generic Namespace
    • Extreme.Mathematics.Generic.LinearAlgebra Namespace
    • Extreme.Mathematics.Generic.LinearAlgebra.Providers Namespace
    • Extreme.Mathematics.LinearAlgebra Namespace
    • Extreme.Mathematics.LinearAlgebra.Complex Namespace
    • Extreme.Mathematics.LinearAlgebra.Complex.Decompositions Namespace
    • Extreme.Mathematics.LinearAlgebra.IO Namespace
    • Extreme.Mathematics.LinearAlgebra.IterativeSolvers Namespace
    • Extreme.Mathematics.LinearAlgebra.IterativeSolvers.Preconditioners Namespace
    • Extreme.Mathematics.LinearAlgebra.Providers Namespace
    • Extreme.Mathematics.LinearAlgebra.Sparse Namespace
    • Extreme.Mathematics.Optimization Namespace
    • Extreme.Mathematics.Optimization.LineSearches Namespace
    • Extreme.Mathematics.SignalProcessing Namespace
    • Extreme.Statistics Namespace
    • Extreme.Statistics.Distributions Namespace
    • Extreme.Statistics.IO Namespace
    • Extreme.Statistics.Multivariate Namespace
    • Extreme.Statistics.Random Namespace
    • Extreme.Statistics.Tests Namespace
    • Extreme.Statistics.TimeSeriesAnalysis Namespace
  • Extreme.Mathematics Namespace
    • AccuracyGoal Structure
    • AlgorithmStatus Enumeration
    • ArrayMath Class
    • BigFloat Class
    • BigInteger Structure
    • BigRational Structure
    • ComplexMatrix Class
    • ComplexVector Class
    • Constants Class
    • ConvergenceCriterion Enumeration
    • DecimalMath Class
    • DimensionMismatchException Class
    • DimensionType Enumeration
    • DoubleComparer Class
    • DoubleComplex Structure
    • Elementary Class
    • EquationSolving Class
    • FunctionMath Class
    • IntegerMath Class
    • Intent Enumeration
    • Interval Structure
    • Interval(T) Structure
    • IPermutable Interface
    • MachineConstants Class
    • Matrix Class
    • MatrixDiagonal Enumeration
    • MatrixElementOrder Enumeration
    • MatrixNorm Enumeration
    • MatrixOperationSide Enumeration
    • MatrixTriangle Enumeration
    • NumericalDifferentiation Class
    • NumericalIntegration Class
    • Permutation Class
    • RoundingMode Enumeration
    • SingleComparer Class
    • SingleComplex Structure
    • SingleComplexMatrix Class
    • SingleComplexVector Class
    • SingleInterval Structure
    • SingleMatrix Class
    • SingleMatrixFiller Delegate
    • SingleVector Class
    • SingleVectorFiller Delegate
    • SolutionReport(T) Class
    • Special Class
    • SymbolicMath Class
    • TotalLossOfPrecisionException Class
    • TransposeOperation Enumeration
    • Vector Class
  • Elementary Class
    • Members
    • Methods
  • Methods
    • Acosh Method
    • Acoth Method
    • Acsch Method
    • Asech Method
    • Asinh Method
    • Atanh Method
    • Clip Method
    • Cos Method
    • Cosh Method
    • CosPi Method
    • Coth Method
    • Csch Method
    • ExpMinus1 Method
    • GetSymbolicDerivative Method
    • Hypot Method
    • IsFinite Method
    • IsInfinite Method
    • IsNaN Method
    • LambertW Method
    • Log1PlusX Method
    • Max Overloads
    • Min Overloads
    • Pow Method
    • Powers Overloads
    • Sech Method
    • Sin Method
    • Sinc Method
    • Sinh Method
    • SinPi Method
    • Sqrt1pxm1 Method
    • Step Overloads
    • Tan Method
    • Tanh Method
    • TanPi Method
  • IsNaN Method
Collapse image Expand Image Copy image CopyHover image
         




Elementary..::..IsNaN Method

Elementary Class See Also 
Returns whether the specified double-precision floating-point number is a Not-A-Number (NaN) value.

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 4.2.11333.0 (4.2.12253.0)

Syntax

C# 
                      public static bool IsNaN(
	double x
)
Visual Basic (Declaration) 
                      Public Shared Function IsNaN ( _
	x As Double _
) As Boolean
Visual C++ 
                      public:
static bool IsNaN(
	double x
)
F# 
                      static member IsNaN : 
        x:float -> bool

Parameters

x
Type: System..::..Double
A double-precision floating-point number.

Return Value

true True true true (True in Visual Basic) if x is a NaN; otherwise falseFalsefalsefalse (False in Visual Basic).

Remarks

This method is significantly faster than the IsNaN(Double) method in many situations.

See Also

Elementary Class
Extreme.Mathematics Namespace

Send comments on this topic to support@extremeoptimization.com

Copyright (c) 2004-2011 ExoAnalytics Inc.

Copyright © 2003-2013, Extreme Optimization. All rights reserved.
Extreme Optimization, Complexity made simple, M#, and M Sharp are trademarks of ExoAnalytics Inc.
Microsoft, Visual C#, Visual Basic, Visual Studio, Visual Studio.NET, and the Optimized for Visual Studio logo
are registered trademarks of Microsoft Corporation.