Definition:Decimal Expansion
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Definition
Let $x \in \R$ be a real number.
The decimal expansion of $x$ is the expansion of $x$ in base $10$.
Decimal Point
The dot that separates the integral part from the fractional part of $x$ is called the decimal point.
That is, it is the radix point when used specifically for a base $10$ representation.
Sources
- Seth Warner: Modern Algebra (1965)... (previous)... (next): $\S 24$
