3 currentprojection=orthographic(-1,1,1);
8 // orthonormal coordinates
9 draw(Label("$\vec{x}$", 1), (-40*X)--(40*X), gray, Arrow3());
10 draw(Label("$\vec{y}$", 1), (-30*Y)--(30*Y), gray, Arrow3());
11 draw(Label("$\vec{z}$", 1), (-30*Z)--(30*Z), gray, Arrow3());
13 eulerians(0, 90, 0, solution=0);