Function Explorer

Here you can freely explore phase portraits of complex functions. Variables accessible in the freely editable formula are $a,b,c,d,e$ Where $a,b,c,d$ depend on the position of the colored points $A,B,C,D$. The dependence is \[ a=z-A, b=z-B, c=z-C, d=z-D. \] Here $z$ is the location in the image. Varable $e$ is a real scalar that can be adjusted between $-1$ and $+1$.

angles    radii    linear diagram    black/white