MATLAB®

i - Imaginary unit

Syntax

i
a+bi
x+i*y 

Description

As the basic imaginary unit sqrt(-1), i is used to enter complex numbers. Since i is a function, it can be overridden and used as a variable. This permits you to use i as an index in for loops, etc.

If desired, use the character i without a multiplication sign as a suffix in forming a complex numerical constant.

You can also use the character j as the imaginary unit.

Examples

Z = 2+3i
Z = x+i*y
Z = r*exp(i*theta)

See Also

conj, imag, j, real

hypot

idealfilter (timeseries)