Keywords: Gjl-cmap-5-0,05-1-0,333-0.jpg A color map illustrating Visualising Complex Functions Own 2008-03-25 Georg-Johann Lay The values indexed s saturation control the transition saturated colors white resp gray scale i e intermediate values infinity The values indexed h value/valenz control the transition black bright i e zero nonzero Parameter a controls where the transition takes place a is just the radius of the circle dividing the two regions dark/bright saturated/gray etc Parameter b controls how sharp the transition is b small soft b large sharp The following images all show the range -10 10×-10 10<math>i</math> and use <math>a_s 5</math> radius of rainbow and <math>a_v 1</math> radius of black disc Gallery <gallery> Image Gjl-cmap-5-10-1-10-0 jpg <math>b_s b_v 10</math> Image Gjl-cmap-5-1-1-1-0 jpg <math>b_s b_v 1</math> Image Gjl-cmap-5-0 05-1-0 333-0 jpg <math>b_s 0 05 b_v 1/3</math> Image Gjl-cmap-5-0 05-1-0 333-1 jpg <math>b_s 0 05 b_v 1/3</math><br/>Roles of S and V interchanged </gallery> See also Visualising Complex Functions Complex plots color maps |