# A Course of Mathematics: For the Use of Academies, as Well as Private Tuition

Samuel Campbell, Evert Duyckinck, T. & J. Swords, Peter A. Mesier, R. M'Dermut, Thomas A. Ronalds, John Tiebout, and George Long, 1818

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### Περιεχόμενα

 GENERAL Principles 1 Roman Notation 7 Multiplication 13 Reduction 23 Compound Addition 32 Golden Rule or Rule of Three 44 Vulgar Fractions 51 Addition of Vulgar Fractions 61
 Involution 199 Surds 206 Infinite Series 213 Piling of Balls 223 Simple Equations 247 Resolution of Cubic and Higher Equations 257 Simple Interest 266 GEOMETRY 275

 Addition of Decimals 67 Multiplication of Decimals 68 Rule of Three in Decimals 76 CONTENTS 77 To extract the Cube Root 85 To extract any Root whatever 110 Musical Proportion 119 Compound Interest 127 Single Position 135 Practical Questions 150 Of Logarithans 159 Multiplication by Logarithms 167 Addition 175 Multiplication 181 Algebraic Fractions 188
 Axioms Theorems 281 Of Ratios and Proportions 819 319 Of Planes and Solids Definitions 336 Problems 353 Applications of Algebra to Geometry 369 Heights and Distances 393 Mensuration of Planes 402 Mensuration of Solids 419 Conic Sections 469 Of the Hyperbola 491 of the Parabola 514 of the Conic Sections as expressed by Algebraic equations called 532 Problems relative to the Division of Surfaces 558 Construction of Geometrical problems 571

### Δημοφιλή αποσπάσματα

Σελίδα xvi - The sum of the three angles of any triangle is equal to two right angles, this is a . Theorem, the truth of which is demonstrated by Geometry.
Σελίδα 380 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 221 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Σελίδα 23 - Weight is used by apothecaries and physicians in compounding dry medicines. TABLE. 20 Grains (gr.} = 1 Scruple, . . sc., or 3. 3 Scruples = 1 Dram, . . dr., or 3 . 8 Drams = 1 Ounce, . . oz., or § . 12 Ounces = 1 Pound, . . Ib., or ft,.
Σελίδα 190 - It is required to divide the number 14 into two such parts that the quotient of the greater divided by the less, may be to the quotient of the less divided by the greater as 16 to 9.
Σελίδα 276 - A STRAIGHT line is perpendicular to a plane, when it is perpendicular to every straight line which it meets in that plane.
Σελίδα 53 - To reduce a mixed number to an improper fraction, Multiply the whole number by the denominator of the fraction, and to the product add the numerator; under this sum write the denominator.
Σελίδα 229 - AB>AC-BC: that is, the difference of any two sides of a triangle is less than the third side.
Σελίδα 317 - The measure of any angle is an arc of any circle contained between the two lines which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc.
Σελίδα 191 - RULE. Transpose all the terms that involve the unknown quantity to one side of the equation, and the known terms to the other...