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std::fdim

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< cpp‎ | numeric‎ | math

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C++
 
Biblioteca numéricos
Funções matemáticas comuns
De ponto flutuante ambiente
Números complexos
Matrizes numéricas
Pseudo-aleatório de geração de números
Tempo de compilação aritmética racional (C++11)
Genéricos operações numéricas
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Generic numeric operations
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Funções matemáticas comuns
Funções
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Functions
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Operações básicas
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Basic operations
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fdim
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Funções exponenciais
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Exponential functions
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Funções de poder
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Power functions
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Funções trigonométricas e hiperbólicas
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Trigonometric and hyperbolic functions
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Erro e funções gamma
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Error and gamma functions
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Número inteiro mais próximo de operações de ponto flutuante
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Nearest integer floating point operations
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Flutuando funções de manipulação de pontos
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Floating point manipulation functions
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Classificação / Comparação
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Classification/Comparison
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Constantes de macros
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Macro constants
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Definido no cabeçalho <cmath>
float       fdim( float x, float y );
 (1) (desde C++11)
double      fdim( double x, double y );
 (2) (desde C++11)
long double fdim( long double x, long double y );
 (3) (desde C++11)
Promoted    fdim( Arithmetic x, Arithmetic y );
 (4) (desde C++11)
Retorna a diferença positiva entre x e y.
Original:
Returns the positive difference between x and y.
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Isto pode ser implementado como fmax (x - y, 0), por isso, se x ≤ y, o resultado é sempre igual a 0, caso contrário é x - y.
Original:
This could be implemented as fmax (x - y, 0), so if x ≤ y, the result is always equals to 0, otherwise it is x - y.
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4)
Se algum argumento tem tipo integral, ele é convertido para double. Se qualquer outro argumento é long double, em seguida, o tipo de retorno é long double, caso contrário é double.
Original:
If any argument has integral type, it is cast to double. If any other argument is long double, then the return type is long double, otherwise it is double.
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[editar] Parâmetros

x, y -
flutuando valor de ponto
Original:
floating point value
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[editar] Valor de retorno

O valor da diferença positiva.
Original:
The positive difference value.
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[editar] Veja também




(C++11)
calcula o valor absoluto de um valor integral (|x|)
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computes absolute value of an integral value (|x|)
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(função) [edit]
(C++11)
maior de dois valores de ponto flutuante
Original:
larger of two floating point values
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(função) [edit]
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