Averages/Mean angle: Difference between revisions
→{{header|C sharp|C#}}
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Mean Angle for 2nd set : -90.000000 degrees
Mean Angle for 3rd set : 20.000000 degrees</pre>
=={{header|C++}}==
{{trans|C#}}
<lang cpp>#include <iomanip>
#include <iostream>
#include <vector>
#define _USE_MATH_DEFINES
#include <math.h>
template<typename C>
double meanAngle(const C& c) {
auto it = std::cbegin(c);
auto end = std::cend(c);
double x = 0.0;
double y = 0.0;
double len = 0.0;
while (it != end) {
x += cos(*it * M_PI / 180);
y += sin(*it * M_PI / 180);
len++;
it = std::next(it);
}
return atan2(y, x) * 180 / M_PI;
}
void printMean(std::initializer_list<double> init) {
std::cout << std::fixed << std::setprecision(3) << meanAngle(init) << '\n';
}
int main() {
printMean({ 350, 10 });
printMean({ 90, 180, 270, 360 });
printMean({ 10, 20, 30 });
return 0;
}</lang>
{{out}}
<pre>-0.000
-90.000
20.000</pre>
=={{header|C sharp|C#}}==
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