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Diffstat (limited to 'Build/source/utils/asymptote/examples/gamma3.asy')
-rw-r--r-- | Build/source/utils/asymptote/examples/gamma3.asy | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/examples/gamma3.asy b/Build/source/utils/asymptote/examples/gamma3.asy new file mode 100644 index 00000000000..1e400152a93 --- /dev/null +++ b/Build/source/utils/asymptote/examples/gamma3.asy @@ -0,0 +1,29 @@ +import graph3; +import palette; + +size(12cm,IgnoreAspect); +currentprojection=orthographic(1,-2,1); + +real X=4.5; +real M=abs(gamma((X,0))); + +pair Gamma(pair z) +{ + return (z.x > 0 || z != floor(z.x)) ? gamma(z) : M; +} + +real f(pair z) {return min(abs(Gamma(z)),M);} + +surface s=surface(f,(-2.1,-2),(X,2),70,Spline); + +real Arg(triple v) +{ + return degrees(Gamma((v.x,v.y)),warn=false); +} + +s.colors(palette(s.map(Arg),Wheel())); +draw(s); + +xaxis3("$\mathop{\rm Re} z$",Bounds,InTicks); +yaxis3("$\mathop{\rm Im} z$",Bounds,InTicks(beginlabel=false)); +zaxis3("$|\Gamma(z)|$",Bounds,InTicks); |