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std::rand

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< cpp‎ | numeric‎ | random
 
 
 
Generación de números pseudoaleatorios
Motores y adaptadores de motor
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Engines and engine adaptors
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Generadores
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Generators
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Distribuciones
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Distributions
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Distribuciones uniformes
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Uniform distributions
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Bernoulli distribuciones
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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
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C library
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rand
 
Definido en el archivo de encabezado <cstdlib>
int rand();
Devuelve una distribuida uniformemente pseudo-aleatorio valor integral entre 0 y RAND_MAX (0 y RAND_MAX incluido) .
Original:
Returns a uniformly distributed pseudo-random integral value between 0 and RAND_MAX (0 and RAND_MAX included).
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srand() debe ser llamada antes de cualquier llamada a rand() para inicializar el generador de números aleatorios .
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srand() should be called before any calls to rand() to initialize the random number generator.
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Contenido

[editar]Parámetros

(Ninguno)
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(none)
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[editar]Valor de retorno

Pseudo-random valor integral entre 0 y .. RAND_MAX
Original:
Pseudo-random integral value between 0 and RAND_MAX.
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[editar]Ejemplo

#include <cstdlib>#include <iostream>#include <ctime>   int main(){std::srand(std::time(0));//use current time as seed for random generatorint uniform_random_variable = std::rand();std::cout<<"Uniform random value on [0 "<<RAND_MAX<<"]: "<< uniform_random_variable <<'\n';}

Posible salida:

Uniform random value on [0 2147483647]: 1373858591

[editar]Ver también

Inicializa un generador de números pseudoaleatorios.
(función)[editar]
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