std::atan2
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| definiert in Header <cmath>
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| float atan2( float y, float x ); |
(1) | |
| double atan2( double y, double x ); |
(2) | |
| long double atan2( long double y, long double x ); |
(3) | |
| Promoted atan2( Arithmetic y, Arithmetic x ); |
(4) | (seit C++11) |
Berechnet den Arcustangens von
4) y/x der Benutzung der Zeichen von Argumenten korrekt zu bestimmen Quadranten . Original:
Computes the inverse tangent of
y/x using the signs of arguments to correctly determine quadrant. 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.
Wenn ein Argument hat integralen Typ, wird es double gegossen. Wenn ein anderes Argument long double ist, dann ist der Rückgabetyp long double ist, sonst ist es 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.
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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Inhaltsverzeichnis |
[Bearbeiten] Parameter
| x, y | - | Floating-Point-Wert
Original: floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[Bearbeiten] Rückgabewert
Arcustangens
y/x im Bogenmaß im Bereich von [-π; π] Bogenmaß .Original:
Arc tangent of
y/x in radians in the range of [-π; π] radians.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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Return value
X argument
[Bearbeiten] Beispiel
#include <cmath> #include <utility> #include <iostream> std::pair<double, double> cartesian_to_polar(double x, double y) { return {std::hypot(x, y), std::atan2(y,x)}; } int main() { std::pair<double, double> polar = cartesian_to_polar(1, 1); std::cout << "(1,1) cartesian is (" << polar.first << "," << polar.second<< ") polar\n"; }
Output:
(1,1) cartesian is (1.41421,0.785398) polar
[Bearbeiten] Siehe auch
| berechnet Arcustangens (arctan(x)) Original: computes arc tangent (arctan(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
| berechnet Arcussinus (arcsin(x)) Original: computes arc sine (arcsin(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
| berechnet Arcuscosinus (arccos(x)) Original: computes arc cosine (arccos(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
| berechnet Tangente (tan(x)) Original: computes tangent (tan(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion) | |
