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Ingy döt Net 2013-04-10 14:58:50 -07:00
parent 2dd7375f96
commit 051504d65b
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Task/Averages-Pythagorean-means/JavaScript/averages-pythagorean-means.js Normal file
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function arithmetic_mean(ary) {
var sum = ary.reduce(function(s,x) {return (s+x)}, 0);
return (sum / ary.length);
}
function geometic_mean(ary) {
var product = ary.reduce(function(s,x) {return (s*x)}, 1);
return Math.pow(product, 1/ary.length);
}
function harmonic_mean(ary) {
var sum_of_inv = ary.reduce(function(s,x) {return (s + 1/x)}, 0);
return (ary.length / sum_of_inv);
}
var ary = [1,2,3,4,5,6,7,8,9,10];
var A = arithmetic_mean(ary);
var G = geometic_mean(ary);
var H = harmonic_mean(ary);
print("is A >= G >= H ? " + (A >= G && G >= H ? "yes" : "no"));