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Diffstat (limited to 'Build/source/utils/asymptote/examples/polarcircle.asy')
-rw-r--r-- | Build/source/utils/asymptote/examples/polarcircle.asy | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/examples/polarcircle.asy b/Build/source/utils/asymptote/examples/polarcircle.asy new file mode 100644 index 00000000000..c08160cde69 --- /dev/null +++ b/Build/source/utils/asymptote/examples/polarcircle.asy @@ -0,0 +1,30 @@ +import math; +import graph; +size(0,100); + +real f(real t) {return 2*cos(t);} +pair F(real x) {return (x,f(x));} + +draw(polargraph(f,0,pi,operator ..)); + +defaultpen(fontsize(10)); + +xaxis("$x$"); +yaxis("$y$"); + +real theta=radians(50); +real r=f(theta); +draw("$\theta$",arc((0,0),0.5,0,degrees(theta)),red,Arrow,PenMargins); + +pair z=polar(r,theta); +draw(z--(z.x,0),dotted+red); +draw((0,0)--(z.x,0),dotted+red); +label("$r\cos\theta$",(0.5*z.x,0),0.5*S,red); +label("$r\sin\theta$",(z.x,0.5*z.y),0.5*E,red); +dot("$(x,y)$",z,N); +draw("r",(0,0)--z,0.5*unit(z)*I,blue,Arrow,DotMargin); + +dot("$(a,0)$",(1,0),NE); +dot("$(2a,0)$",(2,0),NE); + + |