Espaços nominais
Variantes
Acções

std::abs<div class="t-tr-text">(Float)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(float)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>, std::fabs

Da cppreference.com
< cpp‎ | numeric‎ | math

 
 
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
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Funções matemáticas comuns
Funções
Original:
Functions
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Operações básicas
Original:
Basic operations
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abs(int)
labs
llabs
imaxabs



(C++11)
abs(float)
fabs
div
ldiv
lldiv
imaxdiv



(C++11)
fmod
remainder(C++11)
remquo(C++11)
fma(C++11)
fmax(C++11)
fmin(C++11)
fdim(C++11)
nan
nanf
nanl
(C++11)
(C++11)
(C++11)
Funções exponenciais
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Funções de poder
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
Funções trigonométricas e hiperbólicas
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Erro e funções gamma
Original:
Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
Número inteiro mais próximo de operações de ponto flutuante
Original:
Nearest integer floating point operations
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ceil
floor
round
lround
llround
(C++11)
(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint
(C++11)
(C++11)
(C++11)
Flutuando funções de manipulação de pontos
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign(C++11)
Classificação / Comparação
Original:
Classification/Comparison
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fpclassify(C++11)
isfinite(C++11)
isinf(C++11)
isnan(C++11)
isnormal(C++11)
signbit(C++11)
isgreater(C++11)
isgreaterequal(C++11)
isless(C++11)
islessequal(C++11)
islessgreater(C++11)
isunordered(C++11)
Constantes de macros
Original:
Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
Defined in header <cmath>
float       abs( float arg );
double      abs( double arg );
long double abs( long double arg );
float       fabs( float arg );
double      fabs( double arg );
long double fabs( long double arg );
double      fabs( Integral arg );
(a partir do C++ 11)
Calcula o valor absoluto de um arg ponto flutuante valor.
Original:
Computes the absolute value of a floating point value arg.
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[editar] Parâmetros

arg -
flutuando valor de ponto
Original:
floating point value
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[editar] Valor de retorno

o valor absoluto da arg (|arg|)
Original:
the absolute value of arg (|arg|)
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[editar] Veja também

calcula o valor absoluto de um valor integral (|x|)
Original:
computes absolute value of an integral value (|x|)
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(função) [edit]
(C++11)
Verifica se o número dado é negativo
Original:
checks if the given number is negative
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(função) [edit]
retorna a magnitude de um número complexo
Original:
returns the magnitude of a complex number
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(modelo de função) [edit]
aplica-se a std::abs função de cada elemento de valarray
Original:
applies the function std::abs to each element of valarray
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(modelo de função) [edit]