Information class - quantity library

Constructors

Information({dynamic bits, dynamic B, dynamic KiB, dynamic MiB, dynamic GiB, dynamic TiB, double uncert = 0.0}): Constructs an Information object with bits, bytes (B), kibibytes (KiB), mebibytes (MiB), gibibytes (GiB), or tebibytes (TiB). Optionally specify a relative standard uncertainty.
Information.constant(Number valueSI, {InformationUnits? units, double uncert = 0.0}): Constructs a constant Information.
const
Information.inUnits(dynamic value, InformationUnits? units, [double uncert = 0.0]): Constructs an Information instance based on the value and the conversion factor intrinsic to the passed units.
Information.misc(dynamic conv): Constructs a instance without preferred units.

Properties

arbitraryPrecision → bool: Whether or not this Quantity is represented using arbitrary precision.
no setterinherited
cgs → Number: Returns the value of this quantity in alternative CGS (or centimeter-gram-second) units. MKS (meter-kilogram-second) units are preferred.
no setterinherited
dimensions → Dimensions: Dimensions.
finalinherited
hashCode → int: The hash code is based on the value and dimensions. Uncertainty and preferred units are not considered.
no setterinherited
isScalar → bool: Whether or not this Quantity has scalar dimensions, including having no angle or solid angle dimensions.
no setterinherited
isScalarSI → bool: Whether or not this Quantity has scalar dimensions in the strict International System of Units (SI) sense, which allows non-zero angle and solid angle dimensions.
no setterinherited
mks → Number: Returns the value of this quantity in standard MKS (or meter-kilogram-second) units.
no setterinherited
preferredUnits → Units?: Preferred units for display.
finalinherited
relativeUncertainty → double: The relative standard uncertainty in this Quantity object's value.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
standardUncertainty → Quantity: Returns the standard uncertainty in this Quantity object's value as a typed Quantity object.
no setterinherited
valueSI → Number: The value of the quantity in the base units, of the International System of Units (SI).
finalinherited

Methods

abs() → Quantity: Returns the absolute value of this Quantity. If the value of this Quantity is not negative it is returned directly.
inherited
calcExpandedUncertainty(double k) → Quantity: Returns the expanded uncertainty for coverage factor, k, in this Quantity's value as a typed Quantity object.
inherited
compareTo(dynamic q2) → int: Compares this Quantity to q2 by comparing MKS values. The Quantities need not have the same dimensions.
inherited
inverse() → Quantity: Determines the inverse of the quantity represented by this object, creating and returning a Quantity object (which may have different dimensions and therefore be of a different type). This object is not modified.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
outputText(StringBuffer buffer, {UncertaintyFormat uncertFormat = UncertaintyFormat.none, bool symbols = true, NumberFormat? numberFormat}) → void: Appends a String representation of this Quantity to the buffer using the preferred units and number format. If no preferred units have been specified, then MKS units are used. Uncertainty in the value of the Quantity is optionally shown as a plus/minus value in the same units.
inherited
randomSample() → Quantity: Randomly generates a Quantity from this Quantity's value and uncertainty. The uncertainty is represented by a Normal (Gaussian) continuous distribution.
inherited
sqrt() → Quantity: Returns a Quantity that represents the square root of this Quantity, in terms of both value and dimensions (for example, if this Quantity were an Area of 16 square meters, a Length of 4 meters will be returned).
inherited
toJson() → Map<String, dynamic>: Support dart:convert stringify.
inherited
toString() → String: Returns a String representation of this Quantity using the preferredUnits. If no preferred units have been specified, then MKS units are used.
inherited
valueInUnits(Units? units) → Number: Gets the Quantity's value in the specified units. If units is null, the MKS value is returned. If not null, units must have dimensions compatible with this Quantity or a DimensionsException will be thrown.
inherited

Operators

operator *(dynamic multiplier) → Quantity: Returns the product of this quantity and multiplier, which is expected to be either a Quantity, num or Number object. All other types will cause a QuantityException to be thrown.
inherited
operator +(dynamic addend) → Quantity: Returns the sum of this Quantity and addend.
inherited
operator -(dynamic subtrahend) → Quantity: Returns the difference of this Quantity and subtrahend or (this - q2).
inherited
operator /(dynamic divisor) → Quantity: Returns the quotient of this quantity and divisor, including both value and dimensions.
inherited
operator <(Quantity other) → bool: Determines whether on not this Quantity is less than a specified Quantity by comparing their MKS values. The two Quantities need not be of the same type or dimensions.
inherited
operator <=(Quantity other) → bool: Determines whether on not this Quantity is less than or equal to a specified Quantity by comparing their MKS values. The two Quantities need not be of the same type or dimensions.
inherited
operator ==(Object obj) → bool: Returns true if this Quantity is equal to obj. Two Quantity objects are considered equal if their MKS values and dimensions are equal. Only values and dimensions are considered; other attributes such as uncertainty and preferred units are ignored.
inherited
operator >(Quantity other) → bool: Determines whether on not this Quantity is greater than a specified Quantity by comparing their MKS values. The two Quantities need not be of the same type or dimensions.
inherited
operator >=(Quantity other) → bool: Determines whether on not this Quantity is greater than or equal to a specified Quantity by comparing their MKS values. The two Quantities need not be of the same type or dimensions.
inherited
operator ^(dynamic exponent) → Quantity: Returns this Quantity raised to the power of exponent.
inherited
operator unary-() → Quantity: The unary minus operator returns a Quantity whose value is the negative of this Quantity's value.
inherited

Static Properties

bits → InformationUnits: The standard unit of data (ISO, IEC).
final
bytes → InformationUnits: Equal to 8 bits.
final
exbibytes → InformationUnits: 1 exbibyte is equal to 2^60 bytes (1 152 921 504 606 846 976 bytes). Use bytes.exa() to get the metric value (10^18 bytes). Use exbibytes for common binary usage (e.g., for data storage units).
final
gibibytes → InformationUnits: 1 gibibyte is equal to 2^30 bytes (1 073 741 824 bytes). Use bytes.giga() to get the metric value (10^9 bytes). Use gibibytes for common binary usage (e.g., for data storage units).
final
gigabits → InformationUnits: 1 billion bits
final
kibibytes → InformationUnits: 1 kibibyte is equal to 2^10 bytes (1 024 bytes). Use bytes.kilo() to get the metric value (1 000 bytes). Use kibibytes for common binary usage (e.g., for data storage units).
final
kilobits → InformationUnits: 1 000 bits (not 1024 bits)
final
mebibytes → InformationUnits: 1 mebibyte is equal to 2^20 bytes (1 048 576 bytes). Use bytes.mega() to get the metric value (1 000 000 bytes). Use mebibytes for common binary usage (e.g., for data storage units).
final
megabits → InformationUnits: 1 000 000 bits (not 1 048 576 bits)
final
nibbles → InformationUnits: Equal to 4 bits.
final
pebibytes → InformationUnits: 1 pebibyte is equal to 2^50 bytes (1 125 899 906 842 624 bytes). Use bytes.peta() to get the metric value (10^15 bytes). Use pebibytes for common binary usage (e.g., for data storage units).
final
tebibytes → InformationUnits: 1 tebibyte is equal to 2^40 bytes (1 099 511 627 776 bytes). Use bytes.tera() to get the metric value (10^12 bytes). Use tebibytes for common binary usage (e.g., for data storage units).
final
terabits → InformationUnits: 1 trillion bits
final
yobibytes → InformationUnits: 1 yobibyte is equal to 2^80 bytes. Use bytes.yotta() to get the metric value (10^24 bytes).
final
zebibytes → InformationUnits: 1 zebibyte is equal to 2^70 bytes. Use bytes.zetta() to get the metric value (10^21 bytes).
final

Constants

informationDimensions → const Dimensions: Dimensions for this type of quantity.