A symbol (usually a dot or period) used to separate the whole number part from the fractional part in decimal notation. It marks the boundary between units and tenths in the place value system.
From Latin 'decimalis' meaning 'of ten' and 'punctum' meaning 'point' or 'dot'. The decimal point was introduced by John Napier in the early 17th century, revolutionizing numerical notation and calculation.
The decimal point is mathematics' most powerful punctuation mark - it's the tiny dot that bridges the gap between whole and fractional worlds! This simple symbol revolutionized commerce, science, and engineering by making precise measurements universally readable.
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