January 2014
Intermediate to advanced
144 pages
4h 2m
English
Content preview from Mathematical Formulas for Industrial and Mechanical Engineering
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Rational Numbers
1. Any number that can be expressed as the quotient of two integers (fraction).
Example: 3/5.
2. Any number with a decimal that repeats or terminates. Example: 5.67676767...
10.345612.
3. Subsets of rational numbers:
a. Integers: Rational numbers that contain no fractions or decimals {..., 22, 21, 0,
1, 2, ...}.
b. Whole numbers: All positive integers and the number 0 {0, 1, 2, 3, ...}.
c. Natural numbers (counting numbers): All positive integers (not 0) {1, 2, 3, ...}.
Irrational Numbers
1. Any number that cannot be expressed as a quotient of two integers (fraction).
2. Any number with a decimal that does not repeat and does not terminate. ...
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