0.00000000000000002025 which becomes 0.0000000000000000 with doubles.

Thinking on this more, I wonder if you are really having string-ification problem. Digits could be getting lost in that process. The value in normalized notation is 2.025 * 10^-17, which is well within the capabilities of doubles, which use double-precision floating-point format

Update: Fixed a typo.

In reply to Re^5: Need more precision. by RonW
in thread Need more precision. by BrowserUk

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