Significant Digits
المؤلف:
Kenney, J. F. and Keeping, E. S.
المصدر:
"Significant Figures." §1.5 in Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand
الجزء والصفحة:
...
13-2-2021
1872
Significant Digits
When a number is expressed in scientific notation, the number of significant digits (or significant figures) is the number of digits needed to express the number to within the uncertainty of calculation. For example, if a quantity is known to be 
, four figures would be significant
The number of significant figures of a multiplication or division of two or more quantities is equal to the smallest number of significant figures for the quantities involved. For addition or subtraction, the number of significant figures is determined with the smallest significant figure of all the quantities involved. For example, the sum 
is 115.7574, but should be written 115.8 (with rounding), since the quantity 5.2 is significant only to 
.
REFERENCES:
Kenney, J. F. and Keeping, E. S. "Significant Figures." §1.5 in Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, pp. 8-9, 1962.
Mulliss, C. "Significant Figures and Rounding Rules." https://www.angelfire.com/oh/cmulliss/.
الاكثر قراءة في الاحتمالات و الاحصاء
اخر الاخبار
اخبار العتبة العباسية المقدسة
