bicorn


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bicorn

[′bī‚kȯrn]
(mathematics)
A plane curve whose equation in cartesian coordinates x and y is (x 2 + 2 ay - a 2)2 = y 2(a 2 - x 2), where a is a constant.
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References in periodicals archive ?
The bicorn or cocked hat that Napoleon Bonaparte, Andrew Jackson, and many general officers of the army and navy wore during the late 18th and 19th centuries was essentially the same concept with the brims folded on opposite sides against the crown.
His carrot-haired Paroles was inflated with pomposity and braggadocio as he strutted about in a red feathered bicorn hat and red and blue uniform.