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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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15
Task/Nth-root/Java/nth-root-2.java Normal file
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public static double nthroot(int n, double x) {
assert (n > 1 && x > 0);
int np = n - 1;
double g1 = x;
double g2 = iter(g1, np, n, x);
while (g1 != g2) {
g1 = iter(g1, np, n, x);
g2 = iter(iter(g2, np, n, x), np, n, x);
}
return g1;
}
private static double iter(double g, int np, int n, double x) {
return (np * g + x / Math.pow(g, np)) / n;
}