
Originally Posted by
ChemistB
It works pretty well, especially when people down the road are going to be reviewing a paper copy and won't be seeing the hidden digits. Formulas will regain their precision if you back out of it but if you did some manual math or inputted data beyond what is shown, that will be lost.
If you put =Pi() into A1 and format A1 to 2 decimal points, and then reference A1 in a formula, it'll use 3.14. If you uncheck "precision as displayed, the formula = Pi() will then calculate pi out to 15 places again and nothing lost. If, however, you manually entered 3.141593 into A1, and later turn off Precision as displayed and try to increase the number of decimal places, you'll get 3.140000
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