| 单词 | imaginary number |
| 释义 | imaginary number (once / 369354 pages) n WORD FAMILY imaginary number: imaginary numbers USAGE EXAMPLESImaginary numbers were first given that name because they were seen as silly, but now we know how useful they are. Wall Street Journal(Dec 01, 2016) Thus imaginary numbers are in a sense numbers at right angles to ordinary real numbers. Stephen Hawking, A Brief History of Time: And Other...(1988) Yet imaginary numbers proved a powerful invention, and modern physics and engineering could not function without them. New York Times(Jul 24, 2015) n (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 Syn|Hypo|Hyper complex number, complex quantity, imaginary complex conjugate either of two complex numbers whose real parts are identical and whose imaginary parts differ only in sign real, real numberany rational or irrational number pure imaginary numberan imaginary number of the form a+bi where a is 0 dot product, inner product, scalar producta real number (a scalar) that is the product of two vectors imaginary part, imaginary part of a complex numberthe part of a complex number that has the square root of -1 as a factor rational, rational numberan integer or a fraction irrational, irrational numbera real number that cannot be expressed as a rational number number a concept of quantity involving zero and units |
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