moduleceylon.language0.4
Source Code
ceylon.language
classFloat
OverviewPackageAttributesConstructorMethods
Type Hierarchy:
Satisfied Interfaces: Castable<Types>, Comparable<Other>, Exponentiable<This,Other>, Invertable<Inverse>, Number, Numeric<Other>, Scalar<Other>, Summable<Other>

A 64-bit floating point number. A Float is capable of approximately representing numeric values between 2-1022 and (2-2-52)×21023, along with the special values infinity and -infinity, and undefined values (Not a Number). Zero is represented by distinct instances +0, -0, but these instances are equal. An undefined value is not equal to any other value, not even to itself.

Constructor
Float()
Attributes
finiteSource Code
shared Boolean finite

Determines whether this value is finite. Produces false for infinity, -infinity, and undefined.

See also: infinite, infinity
infiniteSource Code
shared Boolean infinite

Determines whether this value is infinite in magnitude Produces true for infinity and -infinity. Produces false for a finite number, +0, -0, or undefined.

See also: infinity, finite
negativeSource Code
shared formal Boolean negative

Determines if this value is a negative number or -infinity. Produces false for a positive number, +0, -0, or undefined.

positiveSource Code
shared formal Boolean positive

Determines if this value is a positive number or infinity. Produces false for a negative number, +0, -0, or undefined.

signSource Code
shared formal Integer sign

The sign of this value. Produces 1 for a positive number or infinity. Produces -` for a negative number or -infinity. Produces 0 for +0, -0, or undefined.

strictlyNegativeSource Code
shared formal Boolean strictlyNegative

Determines if this value is a negative number, -0, or -infinity. Produces false for a positive number, +0, or undefined.

strictlyPositiveSource Code
shared formal Boolean strictlyPositive

Determines if this value is a positive number, +0, or infinity. Produces false for a negative number, -0, or undefined.

undefinedSource Code
shared Boolean undefined

Determines whether this value is undefined (that is, Not a Number or NaN). The undefined value has the property that it is not equal (==) to itself, as a consequence the undefined value cannot sensibly be used in most collections.

Inherited Attributes
Attributes inherited from: Object
hash, string
Attributes inherited from: Invertable<Inverse>
negativeValue, positiveValue
Attributes inherited from: Number
positive, negative, float, integer, magnitude, sign, fractionalPart, wholePart
Inherited Methods
Methods inherited from: Object
equals
Methods inherited from: Castable<Types>
castTo
Methods inherited from: Comparable<Other>
compare
Methods inherited from: Exponentiable<This,Other>
power
Methods inherited from: Numeric<Other>
minus, times, divided
Methods inherited from: Summable<Other>
plus