Complex Numbers

Real and imaginary components, phase angles

In MATLAB^®,iandjrepresent the basic imaginary unit. You can use them to create complex numbers such as2i+5. You can also determine the real and imaginary parts of complex numbers and compute other common values such as phase and angle.

Functions

`abs`	Absolute value and complex magnitude
`angle`	Phase angle
`complex`	Create complex array
`连词`	Complex conjugate
`cplxpair`	Sort complex numbers into complex conjugate pairs
`i`	Imaginary unit
`imag`	Imaginary part of complex number
`isreal`	Determine whether array uses complex storage
`j`	Imaginary unit
`real`	Real part of complex number
`sign`	Sign function (signum function)
`unwrap`	Shift phase angles

Topics

Plot Imaginary and Complex Data
Plot the imaginary part versus the real part of a complex vector.