ComplexExpMapping.svg
Illustration of the mapping of the complex plane by the complex exponential function, w = exp(z). Left:The z-plane with the three complex numbers 0, 1, and i, a quadratic net with mesh size 1, part of the horizontal stripe –π < Im(z) < π (marked with a light gray background) as well as two rectangles colored green and magenta. Right: The images of these objects by the exponential function: Horizontal lines are mapped onto halflines emerging from 0, vertical ones onto circles with center 0. They form curves which locally intersect each other perpendicularly. The number w = 0 is the only one which is not an image point.
AstroOgierCC BY-SA 4.0