How to find the logarithm of a number with specified base
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Find the logarithm of a number (y) with specified base (x). logxY
function baseLog(x, y) {
return Math.log(y) / Math.log(x);
}
Usage:
console.log(baseLog(5, 25)); // 2
console.log(baseLog(7, 49)); // 2
console.log(baseLog(2, 8)); // 3
console.log(baseLog(4, 64)); // 3
console.log(baseLog(2, 16)); // 4