figurate

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Related to Figurate number: Polygonal numbers

figurate

(fĭg′ū-rāt) [L. figuratum, figured]
Having a rounded, curved, circular, or ringed shape. The term is used to describe rashes that leave elaborately embroidered markings on the skin.
References in periodicals archive ?
We pick up from there and use another neat way of adding lists of numbers to find a way of getting general formulae for figurate numbers and use Gauss's method to check it
The same technique can be applied to any other sequence of figurate numbers.
If in the previous issue of AMT (page 15) you didn't try to test Fermat's declaration about figurate numbers being used to express any number, then you might be in a better position to do so now, having found a few more types of figurate numbers with which to play.
The gnomon is the piece which needs to be added to a figurate number to transform it to the next biggest one.
Actually, a famous mathematician, often called the Prince of Amateurs, Pierre Fermat (1601-1665) declared that any number is either a figurate number or the sum of two or more of them.
Its definition is linked in history to our investigation of figurate numbers.
Figurate numbers were a concern of Pythagorean geometry, (I just love these links between numbers and shapes
This is exemplified in the student notes booklet of the "Euler Enrichment Stage" in a section that deals with figurate numbers.