An elementary course of practical mathematics, Parte31851 |
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Página 241
... greater than 5 , or if it is 5 followed by other significant figures , the preced- ing figure should be increased by a unit on dropping those that follow . * Thus , instead of 54682 , we look for 54680 ; and , instead of 93.6481 , we ...
... greater than 5 , or if it is 5 followed by other significant figures , the preced- ing figure should be increased by a unit on dropping those that follow . * Thus , instead of 54682 , we look for 54680 ; and , instead of 93.6481 , we ...
Página 242
... greater , and the number answering to this will be near enough for ordinary purposes . It will be true to the fourth figure . When the figures of the natural number have thus been found , place the decimal point so that the number of in ...
... greater , and the number answering to this will be near enough for ordinary purposes . It will be true to the fourth figure . When the figures of the natural number have thus been found , place the decimal point so that the number of in ...
Página 245
... greater than the dividend , move the decimal point , in the latter , as many * places to the right as will render it greater than the divisor ; and , when the quotient is found from the dividend thus altered , restore the decimal point ...
... greater than the dividend , move the decimal point , in the latter , as many * places to the right as will render it greater than the divisor ; and , when the quotient is found from the dividend thus altered , restore the decimal point ...
Página 246
... greater than the divisor . After both changes , observe how many places the point has been removed in the dividend more than in the divisor , and restore it that number of places in the quotient . EXAMPLE 6. Divide 01958 by · 4828 . Num ...
... greater than the divisor . After both changes , observe how many places the point has been removed in the dividend more than in the divisor , and restore it that number of places in the quotient . EXAMPLE 6. Divide 01958 by · 4828 . Num ...
Página 249
... greater than the sum of the logarithms of the other two terms , remove the decimal point to the right , in either the second or the third term , as far as may be necessary to render the sum of the two last - mentioned logarithms greater ...
... greater than the sum of the logarithms of the other two terms , remove the decimal point to the right , in either the second or the third term , as far as may be necessary to render the sum of the two last - mentioned logarithms greater ...
Términos y frases comunes
angle opposite angles of elevation angular elevation arc BC arithmetical series artificial horizon chains CHAPTER VII ciphers circle column compasses compound interest Compute Cosec Cosine Cotang cube roots decimal point degrees and minutes diagram diameter Divide divisor EDINBURGH EXAMPLE EXERCISES IN CHAPTER extract the square feet figure an integer find the Angles Find the logarithms four figures fourth term geometrical progression given angle given leg given number given side horizontal angles hypothenuse inches instrument LOGARITHMIC SCALES Logarithmic Sine measured miles Multiply NOTE number of degrees object observed opposite the former opposite the latter Perp perpendicular PLANE TRIGONOMETRY Price PROBLEM II PROBLEM VII quadrant quotient radius remove the decimal right-angled triangle Secant sextant side opposite Sliding Rule spirit level square root station Subtract SUTHERLAND AND KNOX Table Tang tangent telescope theodolite third side three figures three sides Treatise versed-sine vertex vertical angle yards
Pasajes populares
Página 282 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 274 - RULE. — Subtract the square of the base from the square of the hypothenuse, and extract the square root of the remainder.
Página 377 - Key to above 60 3. Complete Practical Treatise on the Nature and Use of Logarithms, and on Plane Trigonometry, with Logarithmic and Trigonometrical Tables, . 5 0 4.
Página 245 - To find, then, by logarithms, the fourth term in a proportion, ADD THE LOGARITHMS OF THE SECOND AND THIRD TERMS, AND from the sum SUBTRACT THE LOGARITHM OF THE FIRST TERM.
Página 279 - From D as a center with a radius equal to a, draw an arc intersecting El in F and F'.
Página 292 - ... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged.
Página 279 - Let abc (fig. 1 14) be a spherical triangle, whose sphere has its centre in o, and unity for radius. If now from c, on the plane aob, we let fall the perpendicular cd; from d on ae, bo, the perpendiculars de, df, and draw ce, cf; it would be easy to show that the triangles ceo, cfo are right angles...
Página 278 - To find a side, work the following proportion: — as the sine of the angle opposite the given side is to the sine of the angle opposite the required side, so is the given side to the required side.
Página 243 - BY LOGARITHMS. RULE. FROM the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 284 - That is, as the base, is to the sum of the two sides; so is the difference of the sides, to the sum of the segments of the base.