Inhaltsangabe
CHAPTER I
USE OF FORMULAS
In that part of mathematics known as algebra, letters are used to represent numbers or quantities; the term quantity Is used to designate any number involved In a mathematical process. The use of letters or symbols, in place of the actual numbers, simplifies the solution of mathematical problems and makes the calculations easier and more rapid.
The simplest use made of letters to represent numbers Is In formulas. A formula may be defined as a mathematical rule expressed by signs and symbols Instead of in actual words. The object is to make it possible to condense into small space the information that otherwise would be imparted by long and cumbersome rules.
The symbols used in formulas, as well as in algebra In general, are mainly the letters in the alphabet, and the signs are the ordinary signs used In arithmetic, in addition to a number of signs used for special purposes in algebraic expressions only.
Letters from the Greek alphabet are frequently us
Table of Contents
MACHINERY'S REFERENCE SERIES; each number is a unit in a series on electrical and steam engineering drawing and machine design and shop practice; NUMBER 138; ELEMENTARY ALGEBRA; By Erik Oberg; CONTENTS; Use of Formulas - - - - - - - - - ,3; Use of Equations in Solving Problems - - - - 10; Principles of Algebra - - - - - - - - -14; Solving Equations of the First Degree - - - - 27; Solving Quadratic Equations35; 1914, The Industrial Press, Publishers of Maceinert, 140 148 Lafayette Street, New York City
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Excerpt from Elementary Algebra
The simplest use made of letters to represent numbers is in formulas. A formula may be defined as a mathematical rule expressed by Signs and symbols instead of in actual words. The Object is to make it possible to condense into small space the information that otherwise would be imparted by long and cumbersome rules.
The symbols used in formulas, as well as in algebra in general, are mainly the letters in the alphabet, and the signs are the ordinary signs used in arithmetic, in addition to a number of signs used for special purposes in algebraic expressions only.
About the Publisher
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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CHAPTER I
USE OF FORMULAS
In that part of mathematics known as algebra, letters are used to represent numbers or quantities; the term quantity Is used to designate any number involved In a mathematical process. The use of letters or symbols, in place of the actual numbers, simplifies the solution of mathematical problems and makes the calculations easier and more rapid.
The simplest use made of letters to represent numbers Is In formulas. A formula may be defined as a mathematical rule expressed by signs and symbols Instead of in actual words. The object is to make it possible to condense into small space the information that otherwise would be imparted by long and cumbersome rules.
The symbols used in formulas, as well as in algebra In general, are mainly the letters in the alphabet, and the signs are the ordinary signs used In arithmetic, in addition to a number of signs used for special purposes in algebraic expressions only.
Letters from the Greek alphabet are frequently us
Table of Contents
MACHINERY'S REFERENCE SERIES; each number is a unit in a series on electrical and steam engineering drawing and machine design and shop practice; NUMBER 138; ELEMENTARY ALGEBRA; By Erik Oberg; CONTENTS; Use of Formulas - - - - - - - - - ,3; Use of Equations in Solving Problems - - - - 10; Principles of Algebra - - - - - - - - -14; Solving Equations of the First Degree - - - - 27; Solving Quadratic Equations35; 1914, The Industrial Press, Publishers of Maceinert, 140 148 Lafayette Street, New York City
About the Publisher
Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.
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