![]() ![]() ![]() ![]() Hover the mouse cursor over the origin so that the cursor snaps. Size ( 6.5 cm, 6.5 cm ) import olympiad pair origin, xhat, yhat, zhat origin = ( 0, 0 ) xhat =- ( 1, 1 ) yhat = ( 1, 0 ) zhat = ( 0, 1 ) draw ( circle ( origin, 1 )) draw ( ellipse ( origin, 1, 2 / 5 ), dashed ) //major axis = 2, minor axis = 4/5 draw ( origin - zhat, Arrow ) label ( "$\hat$", intersection, SW ) pair psipoint = 0.6 * expi ( 4 * pi / 13 ) pair psiprime = psipoint - ( 0, 0.7 ) draw ( origin - psipoint ) dot ( psipoint ) label ( "$\left|\psi\right\rangle$", psipoint, NE ) draw ( psipoint - psiprime - origin, dotted ) path thetaArc, phiArc thetaArc = Arc ( origin, 0.15, degrees ( 4 * pi / 13 ), 90 ) phiArc = Arc ( origin, 0.1, degrees ( angle ( psiprime )), degrees ( - 3 * pi / 4 )) draw ( thetaArc ) label ( "$\theta$", thetaArc ) draw ( phiArc ) label ( "$\phi$", phiArc, S ) The olympiad package needed to draw arcs can be found here. Drawing a bowl, dome, or sphere With the Circle tool ( ), draw a circle on the ground plane. ![]()
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