Treatise on Arithmetic, Practical and Theoretical |
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Page 23
... means of signs , symbols , and written characters . ( 29. ) The most rude and inartificial method of ex- pressing numbers by signs would evidently be by holding up as many fingers as there are units in the number to be expressed . The ...
... means of signs , symbols , and written characters . ( 29. ) The most rude and inartificial method of ex- pressing numbers by signs would evidently be by holding up as many fingers as there are units in the number to be expressed . The ...
Page 24
... means the left hand alone was sufficient to count as far as one hundred : thus , to express seventy - five , the two inflexions expressing seventy and five should be exhibited . It is obvious that all that was necessary to be attended ...
... means the left hand alone was sufficient to count as far as one hundred : thus , to express seventy - five , the two inflexions expressing seventy and five should be exhibited . It is obvious that all that was necessary to be attended ...
Page 25
... means of denoting the amount or value of particular numbers . The use of such characters originated in the East , where , indeed , the science of arithmetic may be considered as having had its birth , and where , at a very early epoch ...
... means of denoting the amount or value of particular numbers . The use of such characters originated in the East , where , indeed , the science of arithmetic may be considered as having had its birth , and where , at a very early epoch ...
Page 29
... means . Another inflexion or mark would have enabled the same nine characters to express the hundreds . It may probably be said that our astonish- ment at the imperfection of the old numerical notation arises from our extreme ...
... means . Another inflexion or mark would have enabled the same nine characters to express the hundreds . It may probably be said that our astonish- ment at the imperfection of the old numerical notation arises from our extreme ...
Page 38
... , as being the first means of introducing the Arabic notation into Italy . A considerable period , however , was neces◅ sary to introduce this system into the common business of 38 BOOK I. A TREATISE ON ARITHMETIC .
... , as being the first means of introducing the Arabic notation into Italy . A considerable period , however , was neces◅ sary to introduce this system into the common business of 38 BOOK I. A TREATISE ON ARITHMETIC .
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Treatise on Arithmetic: Practical and Theoretical (1834) Dionysius Lardner No preview available - 2009 |
Common terms and phrases
added addition Agents Effects amount annexed arithmetic ciphers classes of units column complex numbers COMPUTATION converted cubic decimal places decimetre deno denominator DIONYSIUS LARDNER dividend dividing the product divisor divisor and dividend equal equivalent decimal equivalent fractions equivalent number evident example express the number farthings feet figure formed fourth furlongs gallons hundreds improper fraction inches length less Let us suppose manner merator method minator minuend mixed number mowers multi multiple of 9 multiplicand multiply the quotient multiplying the multiplicand necessary nine nomenclature notation number expressing number of days number of shillings obtain the product operation order of units partial product pence perches performed pounds process of division product corresponding proportion quantity question quinary radix ratio reduced remainder resolved result simple numbers single counter subtract subtrahend tens tenth third thousands tiple tiply troy weight vigesimal vulgar fraction weight whole number write yards year's principal
Popular passages
Page 294 - In any proportion, the product of the means is equal to the product of the extremes.
Page 186 - ... the denominator of the dividend by the numerator of the divisor, and the numerator of the dividend by the denominator of the divisor.
Page 29 - L, fifty; C, one hundred; D, five hundred ; M, one thousand.
Page 223 - Gallon., containing Ten Pounds Avoirdupois Weight of distilled Water weighed in Air, at the Temperature of Sixty two Degrees of Fahrenheit's Thermometer, the Barometer being at...
Page 149 - ... that is, the fraction takes its name or denomination from the number of parts, into which the unit is divided. Thus, if the unit be divided into 16 parts, the parts are called sixteenths, and 5 of these parts would be 5 sixteenths, expressed thus, -f%.
Page 148 - J, \i ; that is, we must conceive that the unit has been divided into as many equal parts as there are units in the denominator, and that one of these parts is taken as many times as there are units in the numerator.
Page 167 - To convert a mixed number into an improper fraction —Multiply the integral part by the denominator of the fractional part, and to the product add the numerator of the fractional part.
Page 49 - The character 0 is called a cipher, from the Arabic word tsphara, which signifies a blank or void. The uses of this character in numeration are so important, that its name cipher, has been extended to the whole art of Arithmetic, which has been called to cipher, meaning to work withfigitirtts.
Page 42 - Instead of perpendicular lines or bars, the board had its surface divided by sets of parallel grooves, by stretched wires, or even by successive rows of holes. It was easy to move small counters in the grooves, to slide perforated beads along the wires, or to stick large knobs or round-headed nails in the different holes. To diminish the number of marks required, every column was surmounted by a shorter one, wherein each counter had the same value as five of the ordinary kind, being half the index...