Double Structure

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Represents a double-precision floating-point number.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
<SerializableAttribute> _
Public Structure Double

[SerializableAttribute]
public struct Double

[SerializableAttribute]
public value class Double

[<Sealed>]
[<SerializableAttribute>]
type Double =  struct end

JScript supports the use of structures, but not the declaration of new ones.

The Double type exposes the following members.

Methods

	Name	Description
	CompareTo
	Equals	Indicates whether this instance and a specified object are equal. (Inherited from ValueType.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsInfinity	Returns a value indicating whether the specified number evaluates to negative or positive infinity
	IsNaN	Returns a value that indicates whether the specified value is not a number (NaN).
	IsNegativeInfinity	Returns a value indicating whether the specified number evaluates to negative infinity.
	IsPositiveInfinity	Returns a value indicating whether the specified number evaluates to positive infinity.
	Parse	Converts the string representation of a number to its double-precision floating-point number equivalent.
	ToString() () () ()	Converts the numeric value of this instance to its equivalent string representation. (Overrides Object. . :: . .ToString() () () ().)
	ToString(String)	Converts the numeric value of this instance to its equivalent string representation, using the specified format.
	TryParse	Converts the string representation of a number to its double-precision floating-point number equivalent. A return value indicates whether the conversion succeeded or failed.

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Fields

	Name	Description
	Epsilon	Represents the smallest positive Double value that is greater than zero. This field is constant.
	MaxValue	Represents the largest possible value of a Double. This field is constant.
	MinValue	Represents the smallest possible value of a Double. This field is constant.
	NaN	Represents a value that is not a number (NaN). This field is constant.
	NegativeInfinity	Represents negative infinity. This field is constant.
	PositiveInfinity	Represents positive infinity. This field is constant.

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Remarks

The Double value type represents a double-precision 64-bit number with values ranging from negative 1.79769313486232e308 to positive 1.79769313486232e308, as well as positive or negative zero, PositiveInfinity, NegativeInfinity, and Not-a-Number (NaN).

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

System Namespace