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TAKE THE QUIZ“at infinity”
The following 2 entries include the term at infinity.
plane at infinity
: the aggregate of all points at infinity in projective geometry of three dimensions
point at infinity
: an ideal mathematical point in projective geometry that preserves the magnitudes of all angles of a transformed plane
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


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Merriam-Webster unabridged