## A Treatise on Computation: An Account of the Chief Methods for Contracting and Abbreviating Arithmetical Calculations |

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A Treatise on Computation: An Account of the Chief Methods for Contracting ... Edward Mann Langley No preview available - 2008 |

A Treatise on Computation: An Account of the Chief Methods for Contracting ... Edward Mann Langley No preview available - 2016 |

### Common terms and phrases

abbreviated absolute error added addition algebraical angle approximate value arithmetical complement calculation CD CD CD centimetres CM CM colog cologarithm common logarithm Continued Fractions convergents cube root Cubic equations decimal places degree of accuracy denominator diameter Diff digits division divisor easily error in defect Evaluate example expression extract factors farthings Find the cube find the product Find the square form in succession formula given number Hence log inches integral left column litres log 2E log cos 29 log sin 29 log tan method metres millimetre natural logarithm number of places obtained p. c. per ann partial products places of decimals practice quadratic quadratic equation relative error remainder required to find result rithms significant figures Solve the equation square root student subtraction Suppose table of multiples Test the accuracy theorem Trigonometrical true value Trying 71 vulgar fraction write

### Popular passages

Page 105 - The logarithm of any power of a number is equal to the product of the logarithm of the number and the index of the power. Thus log

Page 104 - as follows:— I. The logarithm of a product is equal to the sum of the logarithms of its factors. Thus log

Page 102 - The logarithm of a number to a given base is the index of that power of the base which is equal to the

Page 7 - Subtract the first figure from the second, the result from the third, the result from the fourth, and so on. The final result, or the rest of

Page 160 - How many amperes would deflect the needle of a tangent galvanometer 60° in the year 1886, the controlling force being the horizontal component of the earth's magnetism, and the galvanometer having a bobbin five inches in radius, wound with six convolutions of wire

Page 101 - during which time the labour of computation has been reduced for the mathematician to about a tenth part of its previous expense of time and trouble. The mathematical computer, however, has had them all to himself ; they have never been applied, except indirectly, to the purposes of commerce or the wants of life.

Page 159 - resistance is reduced to 12 ohms. What is the resistance of the battery if that of the galvanometer

Page 40 - ergs, it is not because the figures in the decimal places beyond the 2 are all zero, but because we do not know what their values really are; or, it may be, for the purpose for which we are using the value, it is immaterial what they are. It is known, as a matter of fact, that a more accurate value is