Smoley's tables; parallel tables of logarithms and squares, diagram for solving right triangles, angles and logaithmic functions, corresponding to given bevels, common logarithms of numbers, tables of logarithmic and natural trigonometric functions, and other tables; for engineers, architects and students . a2+b2 = c2 ^==tg. A=Cotg. B;^=Cotg. A= a -=Sin. A=Cos. Bi -=^^aik c ^ . i b .-c • 7\ -=Co8. A = Sin. B; -= b OBLIQUE ANGLED TRIANGLE. Notation: A B=c; B Q= C=b; B D= D=m: D C= Given A, B, ab. c, A Required a, b, c a, b, c C, b, cB, C, aO, B, b m, n
Smoley's tables; parallel tables of logarithms and squares, diagram for solving right triangles, angles and logaithmic functions, corresponding to given bevels, common logarithms of numbers, tables of logarithmic and natural trigonometric functions, and other tables; for engineers, architects and students . a2+b2 = c2 ^==tg. A=Cotg. B;^=Cotg. A= a -=Sin. A=Cos. Bi -=^^aik c ^ . i b .-c • 7\ -=Co8. A = Sin. B; -= b OBLIQUE ANGLED TRIANGLE. Notation: A B=c; B Q= C=b; B D= D=m: D C= Given A, B, ab. c, A Required a, b, c a, b, c C, b, cB, C, aO, B, b m, n FORMULAE A+B+C=180^; b = a Sin. BSin. A a Sin. C~~ Sin. A (B-C)=+C) X ^;a2=b2+c2—2bc ; orh = ;m=c CosA; n=b—m;a2=:h2+n2 c Sin. B Ax -;B=180^—(A + C); b=ax- a Sm. A Note.—2 values for 0, B and b are possible. (s_b) (s-c) b X c A IJ^—b) (s—c)s (s—a) c2 + b2—a* _aM-b2—-c» = 2b ^ ^ 2 b See example IV Parallel Tables 171 where 8=J (a 4 b + b) DECIMAL EQUIVALENTS. II DECIMALS OF A FOOT. IIIs 0// r 2// 3// 4^^ 5// 8// 0 ¥32 . . . . sas,^ 4-167 .^000 n ttMMMJ .3359 .4193 •tJ\AJ\J .5026 %8 We .0052 .0885 .1719 .2552 .3385 .4219 .5052 ^8 %2 .0078 .0911 .1745 .2578 .3411 .4245 .5078 %2 Ys .0104 .0938 .1771 .2604 .3438 .4271 .5104 Vs %2 .0130 .0964 .1797 .2630 .3464 .4297 .5130 %2 %0 .0156 .0990 .1823 .2656 .3490 .4323 .5156 %6 %2 o0182. .1016 .1849 .2682 .3516 .4349 .5182 %2 % .0208 .1042 .1875 .2708 .3542 .4375 .5208 % %2 .0234 .1
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlogarit, bookyear1912
