imaginary

Definition of imaginary in English English dictionary: existing only in the imagination; of a number, having no real part; that part of a complex number which is a multiple of the square root of -1; fancied; {s} fanciful, created by the imagination, imagined; Anything which is experienced or perceived as existing, but which may not have a direct counterpart at the physical level A well-known technical example with practical applications in physical technologies is i, the square-root of -1 It is misleading and sometimes dangerous to regard 'real' and 'imaginary' as opposites: imaginary entities are real at the respective level of reality, and may have strong echoes in physical reality - as seen in the fact that 'imaginary' fears can sometimes be fatal It should also be noted that every product of a physical technology starts off as an imaginary entity - usually a mental image such as a design or conceptual model which is 'real-ised' through many different physical and other activities; of, or being the imaginary part of a complex number; not based on fact; dubious; "the falsehood about some fanciful secret treaties"- F D Roosevelt; "a small child's imaginary friends"; "her imagined fame"; "to create a notional world for oneself"; The psychological dimension of all images, conscious and/or unconscious, whether simply imagined or genuinely perceived; An imaginary expression or quantity; An imaginary number is a complex number (as 2 + 3i) in which the coefficient of the imaginary unit is not zero; a pure imaginary is a complex number that is the product of a real number other than zero and the imaginary; that exists only in the imagination; Used here in its literal sense of 'image-inary', or to indicate something existing in personal or subjective reality and not yet carried through into objective reality (or cannot be expressed in terms of ordinary reality, as in 'imaginary numbers' in mathematics); Existing only in imagination or fancy; not real; fancied; visionary; ideal; The component of a signal perpendicular to the real signal [Chapter 8]; An imaginary person, place, or thing exists only in your mind or in a story, and not in real life. Lots of children have imaginary friends. not real, but produced from pictures or ideas in your mind; ideal
imaginary axis: The vertical line in the complex plane, every point on which corresponds to a complex number having zero real component
imaginary number: A number of the form ai, where a is a real number and i2 = −1; a complex number whose real part is zero
imaginary numbers: plural form of imaginary number
imaginary part: Of a complex number a + bi, the value b
imaginary parts: plural form of imaginary part
imaginary being: a creature of the imagination; a person that exists only in legends or myths or fiction
imaginary elections: sample elections
imaginary number: The square root of a negative number is an imaginary number It can be expressed in the form ai where a is a real number and i = Examples: 2i, -3 4i, ( = i ) are imaginary numbers (See also number and complex number )
imaginary number: a number of the form a+bi where a and b are real numbers and i is the square root of -1
imaginary number: an even root of a negative number; square root of -1 is symbolized by i Example: 5i
imaginary number: A complex number in which the imaginary part is not zero. Any number of the form a + bi where a and b are real numbers, i is the square root of -1, and b is not zero. If a is zero, the number is called a pure imaginary number. See also complex number
imaginary part: the part of a complex number that has the square root of -1 as a factor
imaginary place: a place that exists only in imagination; a place said to exist in fictional or religious writings
imaginary quantity: even root of a negative number (Mathematics)
imaginary unit: The square root of -1, corresponding to the point (0,1) in the geometric representation of complex numbers as points in a plane
purely imaginary: Of a number, having real part equal to zero
purely imaginary number: An imaginary number
purely imaginary numbers: plural form of purely imaginary number
ımaginary: {a} fancied only in the imagination
imaginarily: In a imaginary manner; in imagination
imaginarily: in an imaginary manner
pure imaginary number: an imaginary number of the form a+bi where a is 0