The unit in the last place of 1.0.
SDK
Framework
static var ulpOfOne: Double { get }
The positive difference between 1.0 and the next greater representable number. The ulp constant corresponds to the C macros FLT, DBL, and others with a similar purpose.
static var pi: DoubleThe mathematical constant pi.
static var infinity: DoublePositive infinity.
static var greatestThe greatest finite number representable by this type.
static var nan: DoubleA quiet NaN (“not a number”).
static var signalingA signaling NaN (“not a number”).
static var leastThe least positive number.
static var leastThe least positive normal number.
static var zero: DoubleThe zero value.