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Diffstat (limited to 'Build/source/utils/asymptote/doc/flow.asy')
-rw-r--r-- | Build/source/utils/asymptote/doc/flow.asy | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/doc/flow.asy b/Build/source/utils/asymptote/doc/flow.asy new file mode 100644 index 00000000000..aba6c5aa055 --- /dev/null +++ b/Build/source/utils/asymptote/doc/flow.asy @@ -0,0 +1,31 @@ +import graph; +defaultpen(1.0); + +size(0,150,IgnoreAspect); + +real arrowsize=4mm; +real arrowlength=2arrowsize; + +typedef path vector(real); + +// Return a vector interpolated linearly between a and b. +vector vector(pair a, pair b) { + return new path(real x) { + return (0,0)--arrowlength*interp(a,b,x); + }; +} + +real f(real x) {return 1/x;} + +real epsilon=0.5; +path g=graph(f,epsilon,1/epsilon); + +int n=3; +draw(g); +xaxis("$x$"); +yaxis("$y$"); + +add(vectorfield(vector(W,W),g,n,true)); +add(vectorfield(vector(NE,NW),(0,0)--(point(E).x,0),n,true)); +add(vectorfield(vector(NE,NE),(0,0)--(0,point(N).y),n,true)); + |