PAGE
Introductory 5
The Mathematical Principle of the Slide Rule 6
Notation by Powers of 10 8
The Mechanical Principle of the Slide Rule 9
The Primitive Slide Rule 10
The Modern Slide Rule 12
The Notation of the Slide Rule 14
The Cursor or Runner 17
Multiplication 19
Division 24
The Use of the Upper Scales for Multiplication and Division 26
Reciprocals 27
Continued Multiplication and Division 28
Multiplication and Division with the Slide Inverted 30
Proportion 31
General Hints on the Elementary Uses of the Slide Rule 36
Squares and Square Roots 37
Cubes and Cube Roots 40
Miscellaneous Powers and Roots 45
Power and Roots by Logarithms 45
Other Methods of Obtaining Powers and Roots 47
Combined Operations 49
Hints on Evaluating Expressions 52
Gauge Points 53
Examples in Technical Calculations 56
Trigonometrical Application 74
Slide Rules with Log-log Scales 84
Special Types of Slide Rules 92
Long-Scale Slide Rules 96
Circular Calculators 101
Slide Rules for Special Calculations 109
Construction Improvements in Slide Rules 110
The Accuracy of Slide Rule Results 111
Appendix:—
New Slide Rules 113
The Solution of Algebraic Equations 122
Screw-Cutting Gear Calculations 124
Gauge Points and Signs on Slide Rules 126
Tables and Data 128
Slide Rule Data Slips 133