complex number
number that can be put in the form a + bi, where a and b are real numbers and i is called the imaginary unit
algebraic number
complex number that is a root of a non-zero polynomial in one variable with rational coefficients
Gaussian rational
complex number of the form p + qi, where p and q are both rational numbers
constant of integration
constant expressing ambiguity when taking the indefinite integral of a function
complex conjugate
operation on complex numbers in which the sign of the real part is kept but the sign of the imaginary part is reversed
complex unit
complex number with modulus equal to one
quadratic integer
generalization of integers in number theory
complex unit circle
set of complex numbers whose absolute value is equal 1; Lie group of complex numbers of unit modulus; topologically a circle
probability amplitude
complex number whose squared absolute value is a probability
real number
quantity along a continuous line
Eisenstein integer
complex number whose mapping on a coordinate plane produces a triangular lattice
imaginary number
complex number that can be written as a real number multiplied by i