Definition: In mathematics, a "tiercel" is a complex number that can be expressed as a sum of two or more smaller numbers. This concept is named after the French mathematician Jean le Rond d'Alembert, who first introduced the idea in 1748. A tiercel is often used to represent a sequence of real numbers where each term represents a step forward or backward in time or space. For example: - In a time series analysis context, a tiercel could
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