A Treatise of Plane Trigonometry: To which is Prefixed, a Summary View of the Nature and Use of Logarithms. Being the Second Part of A Course of Mathematics, Adapted to the Method of Instruction in the American Colleges ...Howe & Deforest, 1815 - 126 σελίδες |
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Σελίδα 9
... opposite side of AC . ( Alg . 507. ) The ordinates a1 , a - 2 , a- , & c . are less than AC , which is taken for unity ; and the abscissas , which are the distances from A to -1 , -2 , -3 , & c . are negative . 22. If the curve be ...
... opposite side of AC . ( Alg . 507. ) The ordinates a1 , a - 2 , a- , & c . are less than AC , which is taken for unity ; and the abscissas , which are the distances from A to -1 , -2 , -3 , & c . are negative . 22. If the curve be ...
Σελίδα 10
... opposite , in the next column , is the decimal part of its logarithm . To this the index must be prefixed , according to the rule in art . 8 . * The best English Tables are Hutton's in 8vo , and Taylor's in 4to . In these , the ...
... opposite , in the next column , is the decimal part of its logarithm . To this the index must be prefixed , according to the rule in art . 8 . * The best English Tables are Hutton's in 8vo , and Taylor's in 4to . In these , the ...
Σελίδα 11
... opposite the three first figures , and in the column which , at the head , is marked with the fourth figure . * The log . of 6234 is 3.79477 , The log . of 783400 is 5.89398 , of 5231 3.71859 , of 6281000 6.79803 . 28. To find the ...
... opposite the three first figures , and in the column which , at the head , is marked with the fourth figure . * The log . of 6234 is 3.79477 , The log . of 783400 is 5.89398 , of 5231 3.71859 , of 6281000 6.79803 . 28. To find the ...
Σελίδα 14
... not required , look in the tables for the logarithm which is nearest to the given one ; and directly opposite , on the left hand , will be found the three first fig- ures , and at the top , over the logarithm 14 THE LOGARITHMIC.
... not required , look in the tables for the logarithm which is nearest to the given one ; and directly opposite , on the left hand , will be found the three first fig- ures , and at the top , over the logarithm 14 THE LOGARITHMIC.
Σελίδα 24
... Root 0.08762 log . 2.94260 Index Power 0.0006727 or 8.94260 3 3 4.82780 6.82780 5 : The 7th power of 0.9061 is 0.5015 . 6. The 5th power of 0.9344 is 0.7123 . 1 EVOLUTION BY LOGARITHMS . 47. Evolution is the opposite 24 INVOLUTION BY.
... Root 0.08762 log . 2.94260 Index Power 0.0006727 or 8.94260 3 3 4.82780 6.82780 5 : The 7th power of 0.9061 is 0.5015 . 6. The 5th power of 0.9344 is 0.7123 . 1 EVOLUTION BY LOGARITHMS . 47. Evolution is the opposite 24 INVOLUTION BY.
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Συχνά εμφανιζόμενοι όροι και φράσεις
acute angle added angle ACB arithmetical complement arithmetical progression b+sin base calculation centre circle cosecant Cosine Cotangent Tangent decimal degrees and minutes divided division divisor equal to radius equation errour exponents extend find the angles find the logarithm fraction geometrical progression given angle given number given side Given the angle gles greater half the sum hypothenuse JEREMIAH DAY length less line of chords line of numbers lines of sines loga logarithmic sine logarithmic TANGENT metical Mult multiplied natural number natural sines number of degrees opposite angles perpendicular positive proportion quadrant quotient radix right angled triangle rithms root secant similar triangles sine of 30 sines and cosines slider square subtracting tables tabular radius tabular sine tangent of half theorem transverse distance triangle ABC trigonometrical tables Trigonometry versed sine vulgar fraction
Δημοφιλή αποσπάσματα
Σελίδα 68 - 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.
Σελίδα 42 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Σελίδα 105 - The sum of any two sides of a triangle is to their difference, as the tangent of half the sum of the angles opposite to those sides, to the tangent of half their difference.
Σελίδα 49 - ... at the head of the column, take the degrees at the top of the table, and the minutes on the left; but if the title be at the foot of the column, take the degrees at the bottom, and the minutes on the right.
Σελίδα 39 - With these the learner should make himself perfectly familiar. 82. The SINE of an arc is a straight line drawn from one end of the arc, perpendicular to a diameter which passes through the other end. Thus BG (Fig.
Σελίδα 116 - 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. By Theorem II. we have a : b : : sin. A : sin. B.
Σελίδα 37 - The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c., marked with the characters °, ', ", '", &c. Thus, 32° 24...
Σελίδα 72 - ... angle. The third angle is found by subtracting the sum of the other two from 180° ; and the third side is found as in Case I.