16 lines
554 B
D
16 lines
554 B
D
import std.stdio, std.algorithm, std.complex;
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import std.math: PI;
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auto radians(T)(in T d) pure nothrow @nogc { return d * PI / 180; }
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auto degrees(T)(in T r) pure nothrow @nogc { return r * 180 / PI; }
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real meanAngle(T)(in T[] D) pure nothrow @nogc {
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immutable t = reduce!((a, d) => a + d.radians.expi)(0.complex, D);
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return (t / D.length).arg.degrees;
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}
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void main() {
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foreach (angles; [[350, 10], [90, 180, 270, 360], [10, 20, 30]])
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writefln("The mean angle of %s is: %.2f degrees",
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angles, angles.meanAngle);
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}
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