home *** CD-ROM | disk | FTP | other *** search
- .geometry "version 0.1";
- v1 = .free(-0.735075, -0.955224, "1");
- v2 = .free(-0.735075, 0.91791, "2");
- v3 = .free(-0.11194, 0.145522, "3");
- l1 = .l.vv(v1, v2, .longline);
- v4 = .vonl(l1, -0.735075, -0.291046, .magenta, .plus);
- l2 = .l.vlperp(v4, l1, .invisible, .longline);
- c3 = .c.vv(v4, v3, .invisible);
- l3 = .l.vlperp(v3, l2, .invisible, .longline);
- v5 = .v.lc(l3, c3, 1, .invisible);
- v6 = .v.lc(l3, c3, 2, .invisible);
- c1 = .c.vvv(v5, v4, v6, .cyan);
- v7 = .v.lc(l2, c1, 1, .invisible);
- v8 = .v.vvmid(v4, v7, .smear);
- l4 = .l.vv(v4, v8, .yellow);
- l5 = .l.vv(v8, v3, .yellow);
- .text("Construction of a Parabola:");
- .text("");
- .text("(See parabola.t) Here's an alternative construction of a");
- .text("parabola.");
-