Tables of Logarithms of Numbers and of Sines and Tangents for Every Ten Seconds of the Quadrant: With Other Useful Tables |
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Page 5
... Multiplication by Logarithms Division by Logarithms .. Involution by Logarithms Evolution by Logarithms .. Proportion by Logarithms BOOK II . PLANE TRIGONOMETRY . Sines , Tangents , Secants , & c . , defined .. Explanation of the ...
... Multiplication by Logarithms Division by Logarithms .. Involution by Logarithms Evolution by Logarithms .. Proportion by Logarithms BOOK II . PLANE TRIGONOMETRY . Sines , Tangents , Secants , & c . , defined .. Explanation of the ...
Page 7
... Multiplication and Division , by substituting in their stead Addition and Subtraction . All numbers are regarded as powers of some one number , which is called the base of the system ; and the exponent of that power of the base which is ...
... Multiplication and Division , by substituting in their stead Addition and Subtraction . All numbers are regarded as powers of some one number , which is called the base of the system ; and the exponent of that power of the base which is ...
Page 8
... multiplied by adding their exponents ( Alg . , Art . 50 ) , The logarithm of the product of two or more factors is equal to the sum of the logarithms of those factors . Hence we see that if it is required to multiply two or more numbers ...
... multiplied by adding their exponents ( Alg . , Art . 50 ) , The logarithm of the product of two or more factors is equal to the sum of the logarithms of those factors . Hence we see that if it is required to multiply two or more numbers ...
Page 9
... multiplied or divided by 10 , its logarithm will be increased or diminished by 1 ; and as this is an integer , it will only change the characteristic of the logarithm , without affecting the decimal part . Hence The decimal part of the ...
... multiplied or divided by 10 , its logarithm will be increased or diminished by 1 ; and as this is an integer , it will only change the characteristic of the logarithm , without affecting the decimal part . Hence The decimal part of the ...
Page 12
... . 4 , the decimal part of the logarithm of any number is the same as that of the number multiplied or divided by 10 , 100 , 1000 , & c . Hence , for a decimal frac tion , we find the logarithm as if the figures 12 TRIGONOMETRY .
... . 4 , the decimal part of the logarithm of any number is the same as that of the number multiplied or divided by 10 , 100 , 1000 , & c . Hence , for a decimal frac tion , we find the logarithm as if the figures 12 TRIGONOMETRY .
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Common terms and phrases
9 I I altitude angle of elevation arithm base chains circle Co-sine Co-tangent complement computed correction cosecant course and distance decimal diameter diff difference of latitude difference of longitude Dist divided equal equator fifth figure find the angles find the area find the Logarithm frustum given number given the angle height Hence horizontal plane hypothenuse inches latitude and departure length LO LO LO logarithmic sine measured meridian middle latitude miles minutes Multiply natural number nautical miles parallel parallel sailing perpendicular places plane sailing Prob Prop proportional quadrant radius Required the logarithmic right-angled spherical triangle right-angled triangle Sandy Hook secant ship sails side AC spherical triangle ABC SPHERICAL TRIGONOMETRY station subtract surface tabular number tang Tangent telescope theodolite Theorem vernier vertical Vulgar Fraction wyll yards zoids ΙΙ ΙΟ
Popular passages
Page 20 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Page 163 - In any spherical triangle, the sines of the sides are proportional to the sines of the opposite angles. In the case of right-angled spherical triangles, this proposition has already been demonstrated.
Page 69 - FIND the area of the sector having the same arc with the segment, by the last problem. Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Page 54 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Page 69 - TO THE NUMBER OF DEGREES IN THE ARC ; So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Page 73 - To find the solidity of a pyramid. RULE. Multiply the area of the base by one third of the altitude.
Page vi - The characteristic of the logarithm of ANY NUMBER GREATER THAN UNITY, is one less than the number of integral figures in the given number.
Page 184 - If a heavy sphere, whose diameter is 4 inches, be let fall into a conical glass, full of water, whose diameter is 5, and altitude 6 inches ; it is required to determine how much water will run over ? AHS.