Mass class - quantity library

Constructors

Mass({dynamic kg, dynamic g, dynamic u, double uncert = 0.0}): Constructs a Mass with kilograms (kg), grams (g) or unified atomic mass units (u). Optionally specify a relative standard uncertainty.
Mass.constant(Number valueSI, {MassUnits? units, double uncert = 0.0}): Constructs a constant Mass.
const
Mass.inUnits(dynamic value, MassUnits? units, [double uncert = 0.0]): Constructs a Mass based on the value and the conversion factor intrinsic to the passed units.
Mass.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
toEnergy() → Energy: Returns the Energy equivalent of this Mass using the famous E=mc^2 relationship.
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

grams → MassUnits: Note: kilograms are the standard MKS unit for mass, but grams is used here to generate the appropriate prefixes. Gram conversion value is set to 0.001 in order to generate the correct units.
final
kilograms → MassUnits: The standard SI unit.
final
metricTons → MassUnits: Accepted for use with the SI.
final
tonnes → MassUnits: Accepted for use with the SI.
final
unifiedAtomicMassUnits → MassUnits: Accepted for use with the SI.
final

Constants

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