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std::uniform_real_distribution

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< cpp‎ | numeric‎ | random

 
 
Numéricos biblioteca
Funciones matemáticas comunes
Floating-point medio ambiente
Los números complejos
Matrices numéricas
Pseudo-aleatoria de generación de números
En tiempo de compilación aritmética racional (C++11)
Genéricos operaciones numéricas
Original:
Generic numeric operations
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(C++11)
 
Pseudo-aleatoria de generación de números
Motores y adaptadores de motor
Original:
Engines and engine adaptors
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Generadores
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Generators
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Distribuciones
Original:
Distributions
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Distribuciones uniformes
Original:
Uniform distributions
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uniform_real_distribution
(C++11)
Bernoulli distribuciones
Original:
Bernoulli distributions
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Poisson distribuciones
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Poisson distributions
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Distribuciones normales
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Normal distributions
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Distribuciones de muestreo
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Sampling distributions
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Secuencias de semillas
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Seed Sequences
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(C++11)
C biblioteca
Original:
C library
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std::uniform_real_distribution
Las funciones miembro
Original:
Member functions
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Generación
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Generation
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Características
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Characteristics
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Terceros funciones
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Non-member functions
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Definido en la cabecera <random>
template< class RealType = double >
class uniform_real_distribution;
(desde C++11)
Produce aleatorio de punto flotante i valores, distribuida uniformemente en el intervalo de [a, b), es decir, distribuidos de acuerdo con la función de probabilidad:
Original:
Produces random floating-point values i, uniformly distributed on the interval [a, b), that is, distributed according to the probability function:
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P(i|a,b) =
1
b − a
.

Contenido

[editar] Tipos de miembros

Miembro de tipo
Original:
Member type
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Definition
result_type RealType
param_type
el tipo del conjunto de parámetros, sin especificar
Original:
the type of the parameter set, unspecified
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[editar] Las funciones miembro

construye nueva distribución
Original:
constructs new distribution
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(función miembro público) [editar]
restablece el estado interno de la distribución
Original:
resets the internal state of the distribution
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(función miembro público) [editar]
Generación
Original:
Generation
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genera el siguiente número aleatorio en la distribución
Original:
generates the next random number in the distribution
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(función miembro público) [editar]
Características
Original:
Characteristics
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devuelve el a parámetro de distribución (valor mínimo)
Original:
returns the a distribution parameter (minimum value)
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(función miembro público) [editar]
devuelve el b parámetro de distribución (valor máximo)
Original:
returns the b distribution parameter (maximum value)
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(función miembro público) [editar]
obtiene o establece el objeto de parámetro de distribución
Original:
gets or sets the distribution parameter object
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(función miembro público) [editar]
devuelve el valor mínimo potencialmente generado
Original:
returns the minimum potentially generated value
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(función miembro público) [editar]
devuelve el valor máximo potencialmente generado
Original:
returns the maximum potentially generated value
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(función miembro público) [editar]

[editar] Terceros funciones

compara dos objetos de distribución
Original:
compares two distribution objects
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(función) [editar]
realiza flujo de entrada y salida en la distribución de números pseudo-aleatorios
Original:
performs stream input and output on pseudo-random number distribution
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(función) [editar]

[editar] Ejemplo

imprimir 10 números aleatorios entre 1 y 2
Original:
print 10 random numbers between 1 and 2
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#include <random>
#include <iostream>
 
int main()
{
    std::random_device rd;
    std::mt19937 gen(rd());
    std::uniform_real_distribution<> dis(1, 2);
    for (int n = 0; n < 10; ++n) {
        std::cout << dis(gen) << ' ';
    }
    std::cout << '\n';
}

Salida:

1.80829 1.15391 1.18483 1.38969 1.36094 1.0648 1.97798 1.27984 1.68261 1.57326