SM 143 Precision & Units

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4 Terms

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Precision in calculations

To 3 d.p. (high precision just to be safe)

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Precision in answers

To 1 d.p.

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Prefixes

  • deca (da) - 101, hecto (h) - 102, kilo (k) - 103, Mega (M) - 106, Giga (G) - 109, Tera (T) - 1012

  • deci (d) - 10-1, centi (c) - 10-2, milli (m) - 10-3, micro (μ) - 10-6, nano (n) - 10-9, pico (p) - 10-12

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Useful unit cases

N/mm2 = MPa