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
... given for ob- lique angled triangles . But the applications of rectangular trigonometry are so numerous , in navigation , surveying , as- tronomy , & c . that it was deemed important , to render famil- iar the various methods of stating ...
... given for ob- lique angled triangles . But the applications of rectangular trigonometry are so numerous , in navigation , surveying , as- tronomy , & c . that it was deemed important , to render famil- iar the various methods of stating ...
Σελίδα 3
... given number be between 1 and 10 , its logarithm will be between 0 and 1 , that is , it will be greater than 0 , but less than 1. It will therefore have 0 for its index , with a de- cimal annexed . Thus the logarithm of 5 is 0.69697 ...
... given number be between 1 and 10 , its logarithm will be between 0 and 1 , that is , it will be greater than 0 , but less than 1. It will therefore have 0 for its index , with a de- cimal annexed . Thus the logarithm of 5 is 0.69697 ...
Σελίδα 8
... given system of logarithms , suppose it to be 1.3 ; and let a2 , a3 , & c . correspond , in length , with the different pow- ers of a . Then the distances from A to 1 , 2 , 3 , & c . will represent the logarithms of a , a , a3 , & c ...
... given system of logarithms , suppose it to be 1.3 ; and let a2 , a3 , & c . correspond , in length , with the different pow- ers of a . Then the distances from A to 1 , 2 , 3 , & c . will represent the logarithms of a , a , a3 , & c ...
Σελίδα 11
... given by the tables . Thus the logarithm of 21716 is not to be found , in those tables which give the numbers to four places of figures only . * In Taylor's , Hutton's and other tables , four figures are placed in the left hand column ...
... given by the tables . Thus the logarithm of 21716 is not to be found , in those tables which give the numbers to four places of figures only . * In Taylor's , Hutton's and other tables , four figures are placed in the left hand column ...
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.
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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.