MersenneTwisterEngine class
A configurable implementation of the Mersenne Twister.
This implementation is portable for both the Dart VM and for Dart for the Web.
Constructors
- MersenneTwisterEngine.custom({required int w, required int r, required int n, required int m, required Int64 a, required int u, required Int64 d, required int s, required Int64 b, required int t, required Int64 c, required int l, required Int64 f, required Int64 f1, required Int64 f2})
- MersenneTwisterEngine.w32()
- MersenneTwisterEngine.w64()
Properties
- a → Int64
-
Coefficients of the rational normal form twist matrix.
final
- b → Int64
-
Tempering mask.
final
- c → Int64
-
Tempering mask.
final
- d → Int64
-
Tempering mask.
final
- f → Int64
-
Initialization multiplier.
final
- f1 → Int64
-
Initialization multiplier when seeding from a sequence.
final
- f2 → Int64
-
Initialization multiplier when seeding from a sequence.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- l → int
-
Tempering right shift amount.
final
- m → int
-
Recurrence offset.
final
- max → BigInt
-
The maximum value returnable by call().
latefinal
- n → int
-
Degree of recurrence.
final
- r → int
-
Separation point of a word (the "twist value").
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- s → int
-
Tempering left shift amount.
final
- t → int
-
Tempering left shift amount.
final
- u → int
-
Tempering right shift amount.
final
- w → int
-
Word size.
final
Methods
-
call(
) → BigInt -
Returns the next random number in the range
0, max. -
genRandReal1(
) → double - Returns the next random double in the closed interval [0, 1].
-
genRandReal2(
) → double - Returns the next random double in the half-open interval [0, 1).
-
genRandReal3(
) → double - Returns the next random double in the open interval (0, 1).
-
init(
Int64 seed) → void - Initializes the MersenneTwisterEngine from a seed.
-
initFromSequence(
List< Int64> key) → void - Initializes the MersenneTwisterEngine from a sequence.
-
nextInt64(
) → Int64 - Returns the next random number.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- defaultSeed → const int