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Significant figures
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==External links== * [http://www.khanacademy.org/video/significant-figures?playlist=Pre-algebra Significant Figures Video by Khan academy] * [http://speleotrove.com/decimal/decifaq4.html#signif The Decimal Arithmetic FAQ – Is the decimal arithmetic ‘significance’ arithmetic?] * [http://www.av8n.com/physics/uncertainty.htm Advanced methods for handling uncertainty] and some explanations of the shortcomings of significance arithmetic and significant figures. * [http://ostermiller.org/calc/sigfig.html Significant Figures Calculator] – Displays a number with the desired number of significant digits. *[http://www.av8n.com/physics/uncertainty.htm Measurements and Uncertainties versus Significant Digits or Significant Figures] – Proper methods for expressing uncertainty, including a detailed discussion of the problems with any notion of significant digits. [[Category:Arithmetic]] [[Category:Numerical analysis]]
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