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if the resolution is to 0.00001.
** 125.340006 has seven significant figures if the resolution is to 0.0001: 1, 2, 5, 3, 4, 0, and 0.
* Zeros to the left of the first non-zero digit (leading zeros) are not significant.
** If a length measurement gives , then = 52 m so 5 and 2 are only significant; the leading zeros appear or disappear, depending on which unit is used, so they are not necessary to indicate the measurement scale.
** 0.00034 has 2 significant

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