std::proj<div class="t-tr-text">(Std :: complexo)<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">(std::complex)</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>
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Definido no cabeçalho <complex> | ||
template<class T > complex<T> proj(const complex<T>& z ); | (desde C++11) | |
Retorna a projeção do
z número complexo para a esfera de Riemann.Original:
Returns the projection of the complex number
z onto the Riemann sphere.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Para a maioria
z, std::proj(z)==z, mas todos os infinitos complexos, até mesmo os números em que um componente é infinito e o outro é NaN, tornar-se positivo real infinito (INFINITY, 0) ou (INFINITY, -0). O sinal de componente (zero) imaginário é o sinal de std::imag(z). Original:
For most
z, std::proj(z)==z, but all complex infinities, even the numbers where one component is infinite and the other is NaN, become positive real infinity, (INFINITY, 0) or (INFINITY, -0). The sign of the imaginary (zero) component is the sign of std::imag(z). The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Índice |
[editar]Parâmetros
| z | - | valor complexo Original: complex value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[editar]Valor de retorno
a projeção de
z para a esfera de RiemannOriginal:
the projection of
z onto the Riemann sphereThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[editar]Exemplo
#include <iostream>#include <complex> int main(){std::complex<double> c1(1, 2);std::cout<<"proj"<< c1 <<" = "<< std::proj(c1)<<'\n'; std::complex<double> c2(INFINITY, -1);std::cout<<"proj"<< c2 <<" = "<< std::proj(c2)<<'\n'; std::complex<double> c3(0, -INFINITY);std::cout<<"proj"<< c3 <<" = "<< std::proj(c3)<<'\n';}
Saída:
proj(1,2) = (1,2) proj(inf,-1) = (inf,-0) proj(0,-inf) = (inf,-0)
[editar]Veja também
retorna a magnitude de um número complexo Original: returns the magnitude of a complex number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função) | |
retorna a magnitude ao quadrado Original: returns the squared magnitude The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função) | |
constrói um número complexo de magnitude e ângulo de fase Original: constructs a complex number from magnitude and phase angle The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função) | |
