Mathematics Self-taught: The Lübsen Method for Self-instruction, and Use in the Problems of Practical Life. I. Arithmetic and AlgebraGillespie bros., printers, Stamford, Conn., 1897 - 333 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Mathematics Self-Taught the Lubsen Method for Self-Instruction, and Use in ... H. B. Lubsen Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2010 |
Mathematics Self-Taught: The Lubsen Method for Self-Instruction, and Use in ... Heinrich Borchert Lubsen,Henry Harrison Suplee Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
added addition algebraic amount arithmetical arithmetical series arithms calculations called capital centimetre cents coefficient column common denominator common factor common fraction composed contained cube root decimal fraction decimal places decimal point determined difference divided dividend divisible divisor exponent expression extract following equation formula four fractional unit geometrical series given number gives greater hence indicated least common multiple logarithm magnitude manner mantissa mathematics means method minuend mixed number months multiplicand negative numerator and denominator obtain operation parenthesis portion pounds prime numbers problem proper fraction proportion Quadratic Equations quotient radical sign rank readily reduced remainder required number required to find result rule simple smaller Solution solved sprocket square root substituting subtract subtrahend Suppose symbols tables third three figures tion twice unknown quantities vulgar fraction whence whole number write written yards zeros ΙΟ
Δημοφιλή αποσπάσματα
Σελίδα 270 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Σελίδα 36 - If the numerator and denominator of each fraction is multiplied (or divided) by the same number, the value of the fraction will not change. This is because a fraction b/b, b being any number, is equal to the multiplicative identity, 1 . Therefore, Hx8.= 88 _5_x!
Σελίδα 57 - Multiply as in whole numbers, and point off as many decimal places in the product as there are decimal places in the multiplicand and multiplier, supplying the deficiency, if any, by prefixing ciphers.
Σελίδα 257 - The logarithm of the quotient of two positive numbers is found by subtracting the logarithm of the divisor from the logarithm of the dividend. (6) The logarithm of a power of a positive number is found by multiplying the logarithm of the number by the exponent of the power. For, N" = (oT)
Σελίδα 205 - To divide powers of the same base, subtract the exponent of the divisor from the exponent of the dividend.
Σελίδα 149 - Multiply each sum by its time, and divide the sum of the products by the whole debt ; the quotient is accounted the mean time. EXAMPLES. 1. A. owes B.
Σελίδα 58 - Move the decimal point to the left as many places as there are decimal places in the dividend.
Σελίδα 45 - Reduce the fractions to a common denominator and divide the numerator of the dividend by the numerator of the divisor.
Σελίδα 193 - ... multiplied by the square of the second, plus the cube of the second term. The above rule may be applied to find the cube of a — b, thus (a - 6)8= [e +(- &)]8 = «8 + 3a2(-7>) + 3a(-&)2 + (-6)« = a3 - 3 o'2b + 3 aft2 - ft3.
Σελίδα 272 - Those roots, viz. the 5th, 7th, llth, &c., which are not resolvable by the square and cube roots, seldom occur, and, when they do, the work is most easily performed by logarithms ; for, if the logarithm of any number be divided by the index of the root, the quotient will be the logarithm of the root itself. ARITHMETICAL PROGRESSION.