Class DoubleEx

Class containing some extension methods for System.Double.

Inheritance

System.Object

DoubleEx

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace:Extend

Assembly:Extend.dll

Syntax

public static class DoubleEx

Methods

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IsInfinity(Double)

Returns whether the specified number evaluates to negative or positive infinity.

Declaration

public static bool IsInfinity(this double value)

Parameters

Type	Name	Description
System.Double	value	The double to check.

Returns

Type	Description
System.Boolean	Returns true if the given double is infinity, otherwise false.

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IsNaN(Double)

Returns whether the specified value is not a number.

Declaration

public static bool IsNaN(this double value)

Parameters

Type	Name	Description
System.Double	value	The double to check.

Returns

Type	Description
System.Boolean	Returns true if the value is not a number, otherwise false.

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IsNegativeInfinity(Double)

Returns whether the specified number evaluates to negative infinity.

Declaration

public static bool IsNegativeInfinity(this double value)

Parameters

Type	Name	Description
System.Double	value	The double to check.

Returns

Type	Description
System.Boolean	Returns true if the given double is negative infinity, otherwise false.

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IsPositiveInfinity(Double)

Returns whether the specified number evaluates to positive infinity.

Declaration

public static bool IsPositiveInfinity(this double value)

Parameters

Type	Name	Description
System.Double	value	The double to check.

Returns

Type	Description
System.Boolean	Returns true if the given double is positive infinity, otherwise false.

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PercentageOf(Double, Double)

Gets the specified percentage of the number.

Declaration

public static double PercentageOf(this double number, double percent)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Double	percent	The percent.

Returns

Type	Description
System.Double	Returns the specified percentage of the number

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PercentageOf(Double, Int32)

Gets the specified percentage of the number.

Declaration

public static double PercentageOf(this double number, int percent)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Int32	percent	The percent.

Returns

Type	Description
System.Double	Returns the specified percentage of the number

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PercentageOf(Double, Int64)

Gets the specified percentage of the number.

Declaration

public static double PercentageOf(this double number, long percent)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Int64	percent	The percent.

Returns

Type	Description
System.Double	Returns the specified percentage of the number

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PercentOf(Double, Double)

Gets the percentage of the number.

Declaration

public static double PercentOf(this double number, double total)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Double	total	The total value.

Returns

Type	Description
System.Double	Returns the percentage of the number.

Exceptions

Type	Condition
System.DivideByZeroException	The number must be greater than zero.

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PercentOf(Double, Int32)

Gets the percentage of the number.

Declaration

public static double PercentOf(this double number, int total)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Int32	total	The total value.

Returns

Type	Description
System.Double	Returns the percentage of the number.

Exceptions

Type	Condition
System.DivideByZeroException	The number must be greater than zero.

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PercentOf(Double, Int64)

Gets the percentage of the number.

Declaration

public static double PercentOf(this double number, long total)

Parameters

Type	Name	Description
System.Double	number	The number.
System.Int64	total	The total value.

Returns

Type	Description
System.Double	Returns the percentage of the number.

Exceptions

Type	Condition
System.DivideByZeroException	The number must be greater than zero.

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Sum(Double, Double[])

Computes the sum of a sequence of the given values.

Declaration

public static double Sum(this double value, params double[] values)

Parameters

Type	Name	Description
System.Double	value	The first value.
System.Double[]	values	The other values.

Returns

Type	Description
System.Double	Returns the sum of the values.

Exceptions

Type	Condition
System.OverflowException	The sum is larger than System.Double.MaxValue
System.ArgumentNullException	values can not be null.

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Sum(Nullable<Double>, Nullable<Double>[])

Computes the sum of a sequence of the given values.

Declaration

public static double ? Sum(this double ? value, params double ? [] values)

Parameters

Type	Name	Description
System.Nullable<T><System.Double>	value	The first value.
System.Nullable<T><System.Double>[]	values	The other values.

Returns

Type	Description
System.Nullable<T><System.Double>	Returns the sum of the values.

Exceptions

Type	Condition
System.OverflowException	The sum is larger than System.Double.MaxValue
System.ArgumentNullException	values can not be null.

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Sum<TSource>(TSource, Func<TSource, Double>, TSource[])

Computes the sum of the sequence of System.Double values that are obtained by invoking a transform function on each element of the input sequence.

Declaration

public static double Sum<TSource>(this TSource value, Func<TSource, double> selector, params TSource[] values)

Parameters

Type	Name	Description
TSource	value	The first value.
System.Func<T, TResult><TSource, System.Double>	selector	A transform function to apply to each element.
TSource[]	values	The other values.

Returns

Type	Description
System.Double	Returns the sum of the projected values.

Type Parameters

Name	Description
TSource	The type of the source values.

Exceptions

Type	Condition
System.OverflowException	The sum is larger than System.Double.MaxValue
System.ArgumentNullException	selector can not be null.

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Sum<TSource>(TSource, Func<TSource, Nullable<Double>>, TSource[])

Computes the sum of the sequence of nullable System.Double values that are obtained by invoking a transform function on each element of the input sequence.

Declaration

public static double ? Sum<TSource>(this TSource value, Func<TSource, double ? > selector, params TSource[] values)

Parameters

Type	Name	Description
TSource	value	The first value.
System.Func<T, TResult><TSource, System.Nullable<T><System.Double>>	selector	A transform function to apply to each element.
TSource[]	values	The other values.

Returns

Type	Description
System.Nullable<T><System.Double>	Returns the sum of the projected values.

Type Parameters

Name	Description
TSource	The type of the source values.

Exceptions

Type	Condition
System.OverflowException	The sum is larger than System.Double.MaxValue
System.ArgumentNullException	selector can not be null.

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ToDays(Double)

Returns the given Double value as day.

Declaration

public static TimeSpan ToDays(this double value)

Parameters

Type	Name	Description
System.Double	value	The Double value.

Returns

Type	Description
System.TimeSpan	Returns the given Double value as days.

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ToHours(Double)

Returns the given Double value as hours.

Declaration

public static TimeSpan ToHours(this double value)

Parameters

Type	Name	Description
System.Double	value	The Double value.

Returns

Type	Description
System.TimeSpan	Returns the given Double value as hours.

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ToMilliseconds(Double)

Returns the given Double value as milliseconds.

Declaration

public static TimeSpan ToMilliseconds(this double value)

Parameters

Type	Name	Description
System.Double	value	The Double value.

Returns

Type	Description
System.TimeSpan	Returns the given Double value as milliseconds.

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ToMinutes(Double)

Returns the given Double value as minutes.

Declaration

public static TimeSpan ToMinutes(this double value)

Parameters

Type	Name	Description
System.Double	value	The Double value.

Returns

Type	Description
System.TimeSpan	Returns the given Double value as minutes.

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ToSeconds(Double)

Returns the given Double value as seconds.

Declaration

public static TimeSpan ToSeconds(this double value)

Parameters

Type	Name	Description
System.Double	value	The Double value.

Returns

Type	Description
System.TimeSpan	Returns the given Double value as seconds.