import graph3;
import palette;
size(12cm,IgnoreAspect);
currentprojection=orthographic(1,-2,1);
real f(pair z) {return abs(exp(z));}
real Arg(triple v) {return degrees(exp((v.x,v.y)),warn=false);}
surface s=surface(f,(-2,-pi),(2,pi),20,Spline);
s.colors(palette(s.map(Arg),Wheel()));
draw(s,render(compression=Low,merge=true));
real xmin=point((-1,-1,-1)).x;
real xmax=point((1,1,1)).x;
draw((xmin,0,0)--(xmax,0,0),dashed);
xaxis3("$\mathop{\rm Re} z$",Bounds,InTicks);
yaxis3("$\mathop{\rm Im} z$",Bounds,InTicks(beginlabel=false));
zaxis3("$|\exp(z)|$",Bounds,InTicks);
Generated by dwww version 1.15 on Thu Jun 20 14:20:08 CEST 2024.