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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Nth-root/AWK/nth-root.awk Normal file
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#!/usr/bin/awk -f
BEGIN {
# test
print nthroot(8,3)
print nthroot(16,2)
print nthroot(16,4)
print nthroot(125,3)
print nthroot(3,3)
print nthroot(3,2)
}
function nthroot(y,n) {
eps = 1e-15; # relative accuracy
x = 1;
do {
d = ( y / ( x^(n-1) ) - x ) / n ;
x += d;
e = eps*x; # absolute accuracy
} while ( d < -e || d > e )
return x
}