Mathematical Constants
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$$\pi = 3.14159$$
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$${\pi ^2} = 9.8696$$
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$$\sqrt \pi = 1.7724$$
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$$\frac{1}{\pi } = 0.3183$$
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$$e = 2.7182$$
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$${\log _{10}}\pi = 0.4971$$
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$${\log _{10}}e = 0.4343$$
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$${\log _e}10 = 2.3026$$
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Plank’s Constants = $$6.624 \times {10^{ – 27}}erg.Sec$$
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Avogadro’s number = $$6.023 \times {10^{23}}mole$$
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The gravitational constant = $$6.670 \times {10^{ – 8}}dyne.c{m^2}/gra{m^2}$$
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$$g = 32.16ft/{\sec ^2} = 980cm/{\sec ^2}$$