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imaginary part

noun

, Mathematics.
  1. the coefficient b in the complex number a + bi.


imaginary part

noun

  1. the coefficient b in a complex number a + i b , where i = √–1
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of imaginary part1

First recorded in 1925–30
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Example Sentences

But she went there now with no intention of posing in any imaginary part.

Yet he never once refers to the imaginary part played by Marshall in the "midnight judges" legend.

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imaginary numberimaginary runner