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  • 20.8 Significant Digits and Rounding Numbers. x
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Significant Digits and Rounding Numbers

Margaret A. Winker and Stephen J. Lurie

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.021.284
Item type: 
section
When numbers are expressed in scientific and biomedical articles, they should reflect the degree of accuracy of the original measurement. Numbers obtained from mathematical calculations should be rounded ... More

Significant Digits

Margaret A. Winker and Stephen J. Lurie

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.607
Item type: 
section
The use of a numeral in a numbers column (eg, the ones column) implies that the method of measurement is accurate to that level of precision. For example, when a reporter attempts to estimate the size ... More
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Rounding

Margaret A. Winker and Stephen J. Lurie

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.608
Item type: 
section
The digits to the right of the last significant digit are rounded up or down. If the digit to the right of the last significant digit is less than 5, the last significant digit is not changed. If the ... More

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