After the acceptance of zero as a number, following the adoption of the decimal way of writing numbers (see Sect. 1.2), it became gradually common to think of numbers as points on a straight line: the positive numbers extending, in order of increasing magnitude.
Rational Number Celestial Body Irrational Number Analytical Geometry Dark Ring
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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