Struct Rational

Represents a rational number with a numerator and denominator. This struct is readonly for performance reasons.

Implements

IEquatable<Rational>

IComparable<Rational>

IConvertible

IFormattable

Inherited Members

object.GetType()

object.Equals(object, object)

object.ReferenceEquals(object, object)

Namespace: FFmpeg.Utils

Assembly: FFmpeg.dll

Syntax

public readonly struct Rational : IEquatable<Rational>, IComparable<Rational>, IConvertible, IFormattable

Constructors

Rational()

Initializes a new instance of the Rational struct with a value of 0/1.

Declaration

public Rational()

Rational(int, int)

Initializes a new instance of the Rational struct with the specified numerator and denominator.

Declaration

public Rational(int numerator, int denominator)

Parameters

Type	Name	Description
int	numerator	The numerator.
int	denominator	The denominator.

Exceptions

Type	Condition
DivideByZeroException	Thrown when the denominator is zero.

Rational(long, long)

Initializes a new instance of the Rational struct using a long numerator and denominator, reducing the result.

Declaration

public Rational(long numerator, long denominator)

Parameters

Type	Name	Description
long	numerator	The numerator.
long	denominator	The denominator.

Fields

Epsilon

Represents the smallest possible positive value for a rational number, defined as 1/MaxValue. This value is used to represent the smallest non-zero rational value.

Declaration

public static readonly Rational Epsilon

Field Value

Type	Description
Rational

MaxValue

Represents the maximum possible value for a rational number, using MaxValue as the numerator and 1 as the denominator.

Declaration

public static readonly Rational MaxValue

Field Value

Type	Description
Rational

MinValue

Represents the minimum possible value for a rational number, using MinValue as the numerator and 1 as the denominator.

Declaration

public static readonly Rational MinValue

Field Value

Type	Description
Rational

NaN

Represents NaN (Not-a-Number) as a rational number (0/0). This is used to represent an undefined or unrepresentable value.

Declaration

public static readonly Rational NaN

Field Value

Type	Description
Rational

NegativeInfinity

Represents negative infinity as a rational number (-1/0). This is used to represent an infinitely large negative value.

Declaration

public static readonly Rational NegativeInfinity

Field Value

Type	Description
Rational

PositiveInfinity

Represents positive infinity as a rational number (1/0). This is used to represent an infinitely large positive value.

Declaration

public static readonly Rational PositiveInfinity

Field Value

Type	Description
Rational

TIME_BASE

Represents the time base used by the Rational structure. It is a rational number with a numerator of 1 and a denominator of FFmpeg.AutoGen.ffmpeg.AV_TIME_BASE. This value is commonly used in time-based calculations in multimedia processing and represents the ffmpegs default time base.

Declaration

public static readonly Rational TIME_BASE

Field Value

Type	Description
Rational

Zero

Represents the rational number zero (0/1). This value is commonly used to represent a zero rational value.

Declaration

public static readonly Rational Zero

Field Value

Type	Description
Rational

Properties

Denominator

Denominator of the rational number.

Declaration

public int Denominator { get; }

Property Value

Type	Description
int

Height

Height represented by the denominator.

Declaration

public int Height { get; }

Property Value

Type	Description
int

IsNaN

Indicates whether the rational number is NaN (Not-a-Number). A rational number is considered NaN if both its numerator and denominator are zero.

Declaration

public bool IsNaN { get; }

Property Value

Type	Description
bool	true if the rational number is NaN, otherwise false.

IsNegativeInfinity

Indicates whether the rational number is negative infinity. A rational number is considered negative infinity if its numerator is less than zero and its denominator is zero.

Declaration

public bool IsNegativeInfinity { get; }

Property Value

Type	Description
bool	true if the rational number is negative infinity, otherwise false.

IsPositiveInfinity

Indicates whether the rational number is positive infinity. A rational number is considered positive infinity if its numerator is greater than zero and its denominator is zero.

Declaration

public bool IsPositiveInfinity { get; }

Property Value

Type	Description
bool	true if the rational number is positive infinity, otherwise false.

IsValidTimeBase

Indicates whether the rational number represents a valid time base. A valid time base is defined as having both a positive numerator and denominator.

Declaration

public bool IsValidTimeBase { get; }

Property Value

Type	Description
bool	true if the rational number represents a valid time base (i.e., both numerator and denominator are positive), otherwise false.

Numerator

Numerator of the rational number.

Declaration

public int Numerator { get; }

Property Value

Type	Description
int

Width

Width represented by the numerator.

Declaration

public int Width { get; }

Property Value

Type	Description
int

Methods

CompareTo(Rational)

Declaration

public int CompareTo(Rational other)

Parameters

Type	Name	Description
Rational	other

Returns

Type	Description
int

Deconstruct(out int, out int)

Deconstructs the Rational into its numerator and denominator components. This method allows for easy extraction of the numerator and denominator when using tuple deconstruction syntax.

Declaration

public void Deconstruct(out int numerator, out int denominator)

Parameters

Type	Name	Description
int	numerator	The numerator of the Rational instance.
int	denominator	The denominator of the Rational instance.

Equals(Rational)

Determines whether the current Rational is equal to another Rational.

Declaration

public bool Equals(Rational other)

Parameters

Type	Name	Description
Rational	other	The Rational to compare with the current Rational.

Returns

Type	Description
bool	true if the current Rational is equal to the other parameter; otherwise, false.

Equals(object?)

Determines whether the current Rational is equal to another object.

Declaration

public override bool Equals(object? obj)

Parameters

Type	Name	Description
object	obj	The object to compare with the current Rational.

Returns

Type	Description
bool	true if the specified object is equal to the current Rational; otherwise, false.

Overrides

ValueType.Equals(object)

GetHashCode()

Serves as the default hash function.

Declaration

public override int GetHashCode()

Returns

Type	Description
int	A hash code for the current Rational.

Overrides

ValueType.GetHashCode()

GreatestCommonDivisor(Rational, Rational, int, Rational)

Returns the greatest common divisor (GCD) of two rational numbers a and b. The GCD is chosen so that both numbers are multiples of it. If the resulting denominator exceeds the specified max_den, the method will return the provided default rational value.

Declaration

public static Rational GreatestCommonDivisor(Rational a, Rational b, int max_den, Rational @default)

Parameters

Type	Name	Description
Rational	a	The first rational number for which the GCD is to be calculated.
Rational	b	The second rational number for which the GCD is to be calculated.
int	max_den	The maximum allowable denominator for the resulting GCD. If the denominator of the GCD exceeds this value, the method will return default.
Rational	default	A fallback rational value to return if the denominator of the GCD exceeds max_den.

Returns

Type	Description
Rational	A Rational representing the greatest common divisor of a and b. If the GCD has a denominator larger than max_den, returns default.

GreatestCommonDivisor(long, long)

Returns the greatest common divisor (GCD) of two integers a and b.

Declaration

public static long GreatestCommonDivisor(long a, long b)

Parameters

Type	Name	Description
long	a	The first integer for which the GCD is to be calculated.
long	b	The second integer for which the GCD is to be calculated.

Returns

Type	Description
long	The greatest common divisor of a and b.

Parse(ReadOnlySpan<char>)

Parses a Rational from a string representation (in the form of a ReadOnlySpan<T>). Throws a FormatException if parsing fails.

Declaration

public static Rational Parse(ReadOnlySpan<char> s)

Parameters

Type	Name	Description
ReadOnlySpan<char>	s	A ReadOnlySpan<T> representing the string to be parsed. The string should be in the format of either: A rational number "numerator/denominator" (e.g., "1/2") A decimal value (e.g., "3.14")

Returns

Type	Description
Rational	A Rational representing the parsed value.

Exceptions

Type	Condition
FormatException	Thrown when the string cannot be parsed into a valid Rational.

Parse(ReadOnlySpan<char>, IFormatProvider?)

Parses a Rational from a string representation (in the form of a ReadOnlySpan<T>), using a specified culture-specific formatting provider. Throws a FormatException if parsing fails.

Declaration

public static Rational Parse(ReadOnlySpan<char> s, IFormatProvider? provider)

Parameters

Type	Name	Description
ReadOnlySpan<char>	s	A ReadOnlySpan<T> representing the string to be parsed. The string should be in the format of either: A rational number "numerator/denominator" (e.g., "1/2") A decimal value (e.g., "3.14")
IFormatProvider	provider	An optional IFormatProvider used to parse the string according to specific culture settings (e.g., decimal separators).

Returns

Type	Description
Rational	A Rational representing the parsed value.

Exceptions

Type	Condition
FormatException	Thrown when the string cannot be parsed into a valid Rational.

Reduce(int)

Reduces the Rational number to its simplest form, considering a maximum value for the numerator and denominator.

Declaration

public Rational Reduce(int max)

Parameters

Type	Name	Description
int	max	The maximum allowed value for the numerator and denominator.

Returns

Type	Description
Rational	A reduced Rational number.

Rescale(long, Rational)

Rescales a 64-bit integer from a specific source time base to the current instance's time base.
This operation is mathematically equivalent to value * timeBaseSrc / this, where this refers to the current time base.

Declaration

public long Rescale(long value, Rational timeBaseSrc)

Parameters

Type	Name	Description
long	value	The 64-bit integer value to be rescaled.
Rational	timeBaseSrc	The source time base (rational number).

Returns

Type	Description
long	The rescaled value in the current instance's time base units.

Rescale(long, Rational, Rational)

Rescales a 64-bit integer according to two rational time bases.
This operation is mathematically equivalent to value * timeBaseSrc / timeBaseDst.

Declaration

public static long Rescale(long value, Rational timeBaseSrc, Rational timeBaseDst)

Parameters

Type	Name	Description
long	value	The 64-bit integer value to be rescaled.
Rational	timeBaseSrc	The source time base (rational number).
Rational	timeBaseDst	The destination time base (rational number).

Returns

Type	Description
long	The rescaled value in the destination time base units.

ToString()

Returns a string representation of the Rational number.

Declaration

public override string ToString()

Returns

Type	Description
string	A string in the format "numerator/denominator".

Overrides

ValueType.ToString()

ToString(IFormatProvider?)

Converts this Rational instance to a string representation, using the default format and the specified culture-specific formatting.

Declaration

public string ToString(IFormatProvider? provider)

Parameters

Type	Name	Description
IFormatProvider	provider	An object that supplies culture-specific formatting information. If null, the default culture is used.

Returns

Type	Description
string	A string representing the rational number in the specified culture format.

ToString(string?)

Converts this Rational instance to a string representation, using the default format and no culture-specific formatting.

Declaration

public string ToString(string? format)

Parameters

Type	Name	Description
string	format	A custom format string. If null or empty, the rational number is represented as "{numerator}/{denominator}".

Returns

Type	Description
string	A string representing the rational number in the specified format.

ToString(string?, IFormatProvider?)

Converts this Rational instance to a string representation.

Declaration

public string ToString(string? format, IFormatProvider? formatProvider)

Parameters

Type	Name	Description
string	format	A custom format string that determines how the rational number is converted to a string. The format string can specify the following: If the first character is 'D' or 'd', followed by a double format (e.g., "D2"), the result will be a string representing the rational number as a double with the specified format. If the format string is just 'D' or 'd' (without any digits), the result will be a string representing the rational number as a double, using the default format for doubles. If the first character is a delimiter (e.g., '/', '-', etc.), followed by an integer format (e.g., "F0"), the result will be a string formatted as "{numerator:format}{delimiter}{denominator:format}". If the format string is empty or null, the method will return the rational number as a string in the format "{numerator}/{denominator}".
IFormatProvider	formatProvider	An object that supplies culture-specific formatting information. This is used to format both the numerator and denominator according to the specified format.

Returns

Type	Description
string	A string representing the rational number in the specified format.

TryParse(ReadOnlySpan<char>, out Rational)

Tries to parse a Rational from a string representation (in the form of a ReadOnlySpan<T>). If successful, the parsed Rational is returned in the out parameter.

Declaration

public static bool TryParse(ReadOnlySpan<char> s, out Rational value)

Parameters

Type	Name	Description
ReadOnlySpan<char>	s	A ReadOnlySpan<T> representing the string to be parsed. The string should be in the format of either: A rational number "numerator/denominator" (e.g., "1/2") A decimal value (e.g., "3.14")
Rational	value	An output parameter that will contain the parsed Rational if parsing succeeds, or NaN if it fails.

Returns

Type	Description
bool	Returns true if the parsing was successful, otherwise false.

TryParse(ReadOnlySpan<char>, IFormatProvider?, out Rational)

Tries to parse a Rational from a string representation (in the form of a ReadOnlySpan<T>), using a specified culture-specific formatting provider.

Declaration

public static bool TryParse(ReadOnlySpan<char> s, IFormatProvider? provider, out Rational value)

Parameters

Type	Name	Description
ReadOnlySpan<char>	s	A ReadOnlySpan<T> representing the string to be parsed. The string should be in the format of either: A rational number "numerator/denominator" (e.g., "1/2") A decimal value (e.g., "3.14")
IFormatProvider	provider	An optional IFormatProvider used to parse the string according to specific culture settings (e.g., decimal separators).
Rational	value	An output parameter that will contain the parsed Rational if parsing succeeds, or NaN if it fails.

Returns

Type	Description
bool	Returns true if the parsing was successful, otherwise false.

Operators

operator +(Rational, Rational)

Adds two rational numbers together, returning their sum as a new Rational. The result is calculated by finding a common denominator and adding the numerators.

Declaration

public static Rational operator +(Rational a, Rational b)

Parameters

Type	Name	Description
Rational	a	The first rational number to be added.
Rational	b	The second rational number to be added.

Returns

Type	Description
Rational	A new Rational representing the sum of the two rational numbers.

operator /(Rational, Rational)

Divides one Rational number by another, returning the result as a new Rational.

Declaration

public static Rational operator /(Rational r1, Rational r2)

Parameters

Type	Name	Description
Rational	r1	The Rational number to divide (numerator).
Rational	r2	The Rational number by which to divide (denominator).

Returns

Type	Description
Rational	A new Rational representing the quotient of the two rational numbers.

operator /(TimeSpan, Rational)

Divides a TimeSpan by a Rational number, returning the quotient as a long.

Declaration

public static long operator /(TimeSpan t, Rational r2)

Parameters

Type	Name	Description
TimeSpan	t	The TimeSpan to divide.
Rational	r2	The Rational divisor.

Returns

Type	Description
long	A long representing the result of dividing the TimeSpan by the Rational.

operator ==(Rational, Rational)

Compares two Rational numbers for equality.

Declaration

public static bool operator ==(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the two Rational numbers are equal; otherwise, false.

operator ==(Rational, TimeSpan)

Compares a Rational with a TimeSpan for equality.

Declaration

public static bool operator ==(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the two are equal; otherwise, false.

operator ==(TimeSpan, Rational)

Compares a TimeSpan with a Rational for equality.

Declaration

public static bool operator ==(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the two are equal; otherwise, false.

explicit operator int(Rational)

Explicitly converts a Rational to an int by truncating its fractional part.

Declaration

public static explicit operator int(Rational r)

Parameters

Type	Name	Description
Rational	r	The Rational value to convert.

Returns

Type	Description
int	The integral part of the rational value, truncated toward zero.

explicit operator long(Rational)

Explicitly converts a Rational to a long by truncating its fractional part.

Declaration

public static explicit operator long(Rational r)

Parameters

Type	Name	Description
Rational	r	The Rational value to convert.

Returns

Type	Description
long	The integral part of the rational value, truncated toward zero.

explicit operator Rational(long)

Explicitly converts a long to a Rational.

Declaration

public static explicit operator Rational(long l)

Parameters

Type	Name	Description
long	l	The integer value to convert.

Returns

Type	Description
Rational	A Rational representing l with a denominator of 1.

operator >(Rational, Rational)

Compares two Rational numbers for greater than.

Declaration

public static bool operator >(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the first Rational is greater than the second; otherwise, false.

operator >(Rational, TimeSpan)

Compares a Rational number with a TimeSpan for greater than.

Declaration

public static bool operator >(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the Rational is greater than the TimeSpan; otherwise, false.

operator >(TimeSpan, Rational)

Compares a TimeSpan with a Rational for greater than.

Declaration

public static bool operator >(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the TimeSpan is greater than the Rational; otherwise, false.

operator >=(Rational, Rational)

Compares two Rational numbers for greater than or equal to.

Declaration

public static bool operator >=(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the first Rational is greater than or equal to the second; otherwise, false.

operator >=(Rational, TimeSpan)

Compares a Rational number with a TimeSpan for greater than or equal to.

Declaration

public static bool operator >=(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the Rational is greater than or equal to the TimeSpan; otherwise, false.

operator >=(TimeSpan, Rational)

Compares a TimeSpan with a Rational for greater than or equal to.

Declaration

public static bool operator >=(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the TimeSpan is greater than or equal to the Rational; otherwise, false.

implicit operator Rational(_AVRational)

Implicitly converts an FFmpeg.AutoGen._AVRational to a Rational.

Declaration

public static implicit operator Rational(_AVRational r)

Parameters

Type	Name	Description
_AVRational	r

Returns

Type	Description
Rational

implicit operator _AVRational(Rational)

Implicitly converts a Rational to an FFmpeg.AutoGen._AVRational.

Declaration

public static implicit operator _AVRational(Rational r)

Parameters

Type	Name	Description
Rational	r

Returns

Type	Description
_AVRational

implicit operator double(Rational)

Implicitly converts a Rational to a double.

Declaration

public static implicit operator double(Rational r)

Parameters

Type	Name	Description
Rational	r

Returns

Type	Description
double

implicit operator TimeSpan(Rational)

Implicitly converts a Rational to a TimeSpan.

Declaration

public static implicit operator TimeSpan(Rational r)

Parameters

Type	Name	Description
Rational	r

Returns

Type	Description
TimeSpan

implicit operator Rational(double)

Implicitly converts a double to a Rational.

Declaration

public static implicit operator Rational(double value)

Parameters

Type	Name	Description
double	value

Returns

Type	Description
Rational

implicit operator Rational(int)

Implicitly converts an int to a Rational.

Declaration

public static implicit operator Rational(int i)

Parameters

Type	Name	Description
int	i	The integer value to convert.

Returns

Type	Description
Rational	A Rational representing i with a denominator of 1.

implicit operator Rational(TimeSpan)

Implicitly converts a TimeSpan to a Rational.

Declaration

public static implicit operator Rational(TimeSpan timeSpan)

Parameters

Type	Name	Description
TimeSpan	timeSpan

Returns

Type	Description
Rational

implicit operator Rational((int numerator, int denominator))

Implicitly converts a tuple of int (numerator, denominator) to a Rational.

Declaration

public static implicit operator Rational((int numerator, int denominator) value)

Parameters

Type	Name	Description
(int Width, int Height)	value

Returns

Type	Description
Rational

implicit operator Rational((long numerator, long denominator))

Explicitly converts a tuple of long(numerator, denominator) to a Rational.

Declaration

public static implicit operator Rational((long numerator, long denominator) value)

Parameters

Type	Name	Description
(long numerator, long denominator)	value

Returns

Type	Description
Rational

operator !=(Rational, Rational)

Compares two Rational numbers for inequality.

Declaration

public static bool operator !=(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the two Rational numbers are not equal; otherwise, false.

operator !=(Rational, TimeSpan)

Compares a Rational with a TimeSpan for inequality.

Declaration

public static bool operator !=(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the two are not equal; otherwise, false.

operator !=(TimeSpan, Rational)

Compares a TimeSpan with a Rational for inequality.

Declaration

public static bool operator !=(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the two are not equal; otherwise, false.

operator <(Rational, Rational)

Compares two Rational numbers for less than.

Declaration

public static bool operator <(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the first Rational is less than the second; otherwise, false.

operator <(Rational, TimeSpan)

Compares a Rational number with a TimeSpan for less than.

Declaration

public static bool operator <(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the Rational is less than the TimeSpan; otherwise, false.

operator <(TimeSpan, Rational)

Compares a TimeSpan with a Rational for less than.

Declaration

public static bool operator <(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the TimeSpan is less than the Rational; otherwise, false.

operator <=(Rational, Rational)

Compares two Rational numbers for less than or equal to.

Declaration

public static bool operator <=(Rational left, Rational right)

Parameters

Type	Name	Description
Rational	left	The first Rational number to compare.
Rational	right	The second Rational number to compare.

Returns

Type	Description
bool	True if the first Rational is less than or equal to the second; otherwise, false.

operator <=(Rational, TimeSpan)

Compares a Rational number with a TimeSpan for less than or equal to.

Declaration

public static bool operator <=(Rational rational, TimeSpan timeSpan)

Parameters

Type	Name	Description
Rational	rational	The Rational number to compare.
TimeSpan	timeSpan	The TimeSpan to compare.

Returns

Type	Description
bool	True if the Rational is less than or equal to the TimeSpan; otherwise, false.

operator <=(TimeSpan, Rational)

Compares a TimeSpan with a Rational for less than or equal to.

Declaration

public static bool operator <=(TimeSpan timeSpan, Rational rational)

Parameters

Type	Name	Description
TimeSpan	timeSpan	The TimeSpan to compare.
Rational	rational	The Rational number to compare.

Returns

Type	Description
bool	True if the TimeSpan is less than or equal to the Rational; otherwise, false.

operator *(Rational, Rational)

Multiplies two Rational numbers.

Declaration

public static Rational operator *(Rational r1, Rational r2)

Parameters

Type	Name	Description
Rational	r1	The first Rational number to multiply.
Rational	r2	The second Rational number to multiply.

Returns

Type	Description
Rational	A new Rational that represents the product of the two rational numbers.

operator *(int, Rational)

Multiplies an integer by a Rational.

Declaration

public static Rational operator *(int value, Rational r)

Parameters

Type	Name	Description
int	value	The integer to multiply with the rational number.
Rational	r	The Rational number to multiply.

Returns

Type	Description
Rational	A new Rational that represents the product of the integer and the rational number.

operator *(long, Rational)

Multiplies a long integer by a Rational.

Declaration

public static Rational operator *(long value, Rational r)

Parameters

Type	Name	Description
long	value	The long integer to multiply with the rational number.
Rational	r	The Rational number to multiply.

Returns

Type	Description
Rational	A new Rational that represents the product of the long integer and the rational number.

operator -(Rational, Rational)

Subtracts one rational number from another, returning the result as a new Rational. The result is calculated by finding a common denominator and subtracting the numerators.

Declaration

public static Rational operator -(Rational a, Rational b)

Parameters

Type	Name	Description
Rational	a	The rational number to subtract from (minuend).
Rational	b	The rational number to subtract (subtrahend).

Returns

Type	Description
Rational	A new Rational representing the difference between the two rational numbers.

Implements

IEquatable<T>

IComparable<T>

IConvertible

IFormattable