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std::acos

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Numerik-Bibliothek
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definiert in Header <cmath>
float       acos( float arg );
double      acos( double arg );
long double acos( long double arg );
double      acos( Integral arg );
 (seit C++11)
Berechnet Arkuskosinus arg
Original:
Computes arc cosine of arg
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Inhaltsverzeichnis

[Bearbeiten] Parameter

arg -
Floating-Point-Wert
Original:
floating point value
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[Bearbeiten] Rückgabewert

Arkuskosinus arg im Bogenmaß im Bereich von [0; π] Bogenmaß .
Original:
Arc cosine of arg in radians in the range of [0; π] radians.
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Domain-Fehler tritt auf, wenn arg außerhalb des Bereichs [-1.0; 1.0] ist. NAN wird in diesem Fall wieder .
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Domain error occurs if arg is outside the range [-1.0; 1.0]. NAN is returned in that case.
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[Bearbeiten] Beispiel

#include <cmath>
#include <iostream>
 
int main()
{
    std::cout << "The number pi is " << std::acos(-1) << '\n';
}

Output: 

The number pi is 3.14159

[Bearbeiten] Siehe auch
berechnet Arcussinus (arcsin(x))
Original:
computes arc sine (arcsin(x))
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(Funktion) [edit]
berechnet Arcustangens (arctan(x))
Original:
computes arc tangent (arctan(x))
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(Funktion) [edit]
Arcustangens mit Schildern Quadranten bestimmen
Original:
arc tangent, using signs to determine quadrants
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(Funktion) [edit]
berechnet Cosinus (cos(x))
Original:
computes cosine (cos(x))
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(Funktion) [edit]
(C++11)
berechnet Arcuscosinus einer komplexen Zahl (arccos(z))
Original:
computes arc cosine of a complex number (arccos(z))
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(Funktions-Template) [edit]
wendet die Funktion std::acos auf jedes Element valarray
Original:
applies the function std::acos to each element of valarray
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(Funktions-Template) [edit]
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/numeric/math/acos&oldid=29501“