Returns the imaginary part of a complex number.
- MATH to access the Math menu.
- RIGHT, RIGHT to access the CPX (complex) submenu.
- 3 to select imag(, or use arrows.
imag(z) returns the imaginary part of the complex number z. If z is represented as x+iy where x and y are both real, imag(z) returns y. Also works on a list of complex numbers.