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Introductory Physics Homework Help
Circumference of Circle with Uncertainty
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[QUOTE="Orodruin, post: 6137708, member: 510075"] Word of warning: You typically [I]should not[/I] round errors down. This overrepresents the accuracy that you have. The typical thing to do when you have an error whose first non-zero digit is 1 or 2 is to include another digit to also avoid overstating the error. The number of significant digits is [I]not[/I] very relevant when you include the errors, the entire point of significant digits is that it is kind of a poor man's error analysis - letting you get a feeling for the kind of accuracy that you have from the number of digits you have included - but this is obsolete when you have the actual error! In this case, I would answer 45.9±1.3 cm. [/QUOTE]
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Circumference of Circle with Uncertainty
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