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1. Oxford American Dictionary

   imaginary number

   • n.
     a number that is expressed in terms of the square root of a negative number (usually the square root of −1, represented by i or j)

   • noun: imaginary number, plural noun: imaginary numbers

2. • 釋義

   n.

   名詞

   • 1. a number that is expressed in terms of the square root of a negative number (usually the square root of −1, represented by i or j) when imaginary numbers are squared, they yield a negative result
3. • 更多解釋

   imaginary number

   • n.
     a number that is expressed in terms of the square root of a negative number (usually the square ... when imaginary numbers are squared, they yield a negative result

   Oxford Dictionary