REQUEST: Significant Digit Calculator

[Joe Horn]

(01-22-2018 01:32 AM)Helge Gabert Wrote:  ROUND(7.8676,-2) returns 7.9 (two sig. digits).

Other functions (like ROUND) which let you control the number of significant digits include:

TRUNCATE(7.8676,-2) --> 7.8 (notice the negative sign)
evalf(7.8676,2) --> 7.9 (the second argument's sign is ignored)
approx(7.8676,2) --> 7.9 (the second argument's sign is ignored)

And if you want all your results to automatically be rounded to 4 significant digits, just set the Number Format (in Home Settings) to Scientific 3.

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