Определение imaginary number в Английский Язык Английский Язык словарь
A number of the form ai, where a is a real number and i2 = −1; a complex number whose real part is zero
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 )
a number of the form a+bi where a and b are real numbers and i is the square root of -1
an even root of a negative number; square root of -1 is symbolized by i Example: 5i
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