Double.IsRealNumber(Double) Method
Definition
Important
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Determines if a value represents a real number.
public:
static bool IsRealNumber(double value) = System::Numerics::INumberBase<double>::IsRealNumber;public static bool IsRealNumber (double value);static member IsRealNumber : double -> boolPublic Shared Function IsRealNumber (value As Double) As BooleanParameters
- value
- Double
The value to be checked.
Returns
true if value is a real number; otherwise, false.
Implements
Remarks
This function returns true for a complex number a + bi where b is zero.
This function checks values against the extended real number line, thus returns true for PositiveInfinity and NegativeInfinity.
Applies to
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