Real class abstract

Provides a common handle for all Real Numbers.

Inheritance
Implementers

Constructors

Real()
The default constructor.
Real.constant()
Creates a constant real number.
const
Real.fromMap(Map<String, dynamic>? m)
Constructs an instance using the value for property d (decimal) or i (integer) in Map m.
factory

Properties

hashCode int
The hash codes for two Numbers will be equal when the represented values are equal, even if the Number subtypes are different.
no setterinherited
isFinite bool
Whether this Number represents a finite value.
no setterinherited
isInfinite bool
Whether this Number represents infinity.
no setteroverride
isInteger bool
True if the Number represents an integer value. Note that the Number does not have to be of type Integer for this to be true.
no setterinherited
isNaN bool
Whether this Number represents a value .
no setteroverride
isNegative bool
Whether this number is less than zero.
no setteroverride
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
sign num
Returns minus one, zero or plus one depending on the sign and numerical value of the number. Returns minus one if the number is less than zero, plus one if the number is greater than zero, and zero if the number is equal to zero. Returns NaN if the number is NaN. Returns an int if this Number's value is an integer, a double otherwise.
no setterinherited
value num
All Real subclasses must be able to provide their value as a dart:core num.
no setter

Methods

abs() Number
Returns the absolute value of this Number.
override
ceil() Number
Returns the least Number having integer components no smaller than this Number.
override
clamp(dynamic lowerLimit, dynamic upperLimit) Number
Returns this num clamped to be in the range lowerLimit-upperLimit. The comparison is done using compareTo and therefore takes -0.0 into account. This also implies that double.NAN is treated as the maximal double value. lowerLimit and upperLimit are expected to be num or `Number' objects.
inherited
compareTo(dynamic n2) int
Compares this Number to another Number by comparing values. n2 is expected to be a num or Number. If it is not it will be considered to have a value of 0.
inherited
floor() Number
Returns the greatest Number with an integer value no greater than this Number. If this is not finite (NaN or infinity), throws an UnsupportedError.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reciprocal() Number
Returns the Number that is the reciprocal of this Number. This Number is unaffected.
override
remainder(dynamic divisor) Number
Returns the remainder of the truncating division of this Number by divisor. The result r of this operation satisfies: this == (this ~/ other) * other + r. As a consequence the remainder r has the same sign as the operator /(divisor).
override
round() Number
Returns the integer Number closest to this Number. Rounds away from zero when there is no closest integer: (3.5).round() == 4 and (-3.5).round() == -4. If this is not finite (NaN or infinity), throws an UnsupportedError.
override
toDouble() double
Converts this Number to a dart:core double.
override
toInt() int
Converts this Number to a dart:core int.
override
toJson() Map<String, dynamic>
Subclasses must support dart:json for stringify.
inherited
toString() String
A string representation of this object.
override
truncate() Number
Returns a truncated value.
override

Operators

operator %(dynamic divisor) Number
The modulo operator. Imaginary and Complex divisors are nor supported and will throw an Exception.
override
operator *(dynamic multiplicand) Number
Returns the product of this Number and the multiplicand (a Number or num). This Number is unaffected.
override
operator +(dynamic addend) Number
Addition operator.
override
operator -(dynamic subtrahend) Number
Returns the difference of this Number and the subtrahend (a Number or num). This Number is unaffected.
override
operator /(dynamic divisor) Number
Returns the quotient of this Number divided by the divisor (a Number or num). This Number is unaffected.
override
operator <(dynamic obj) bool
Returns whether the value of this Number is less than the value of obj (a Number or num).
override
operator <=(dynamic obj) bool
Returns whether the value of this Number is less than or equal to the value of obj (a Number or num).
override
operator ==(Object obj) bool
Two Numbers will be equal when the represented values are equal, even if the Number subtypes are different.
inherited
operator >(dynamic obj) bool
Returns whether the value of this Number is greater than the value of obj (a Number or num).
override
operator >=(dynamic obj) bool
Returns whether the value of this Number is greater than or equal to the value of obj (a Number or num).
override
operator ^(dynamic exponent) Number
The power operator (note: NOT bitwise XOR).
override
operator unary-() Real
Negation operator.
override
operator ~/(dynamic divisor) Number
The truncating division operator. When dividing by an Imaginary or Complex number, the result will contain an imaginary component. The imaginary component is not truncated; only the real portion of the result is truncated.
override