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I am looking for a fast square root implementation in Java for double values in the input range of [0, 2*10^12]. For any value in this range, the precision should be upto 5 decimal places. In other words, the result can differ from the Math.sqrt() method after 5 decimal places. However, this method needs to be much faster than Math.sqrt().
Any ideas? Thanks!
I don’t believe (without a benchmark to prove this wrong) that a pure Java implementation could me much faster than
Math.sqrt(). Both the Oracle JRE implementation and the OpenJDK implementation are native implementations.