Created
January 18, 2017 07:22
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Manual Square Root in JavaScript
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| function sqrt(num, guess) { | |
| guess = guess || num / 3; | |
| if (Math.abs(num - guess * guess) < 5e-15) { | |
| return guess; | |
| } else { | |
| return sqrt(num, (num / guess + guess) / 2); | |
| } | |
| }; | |
| console.log(sqrt(25)) |
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