I tried your solution on very small numbers such as .000000000323 and the accuracy was way off. I believe it is because you compare the radicand to the square of the guess instead of comparing the last guess to the current guess. At any rate, that is a very short solution, for sure.

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$MCF = "Most Clueless Friar Abbot";
$nysus = $PM . $MCF;

In reply to Re: Re: Square Root algorithm by nysus
in thread Square Root algorithm by nysus

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