Merge branch 'master' into master

1 files changed, 13 insertions, 0 deletions

diff --git a/FSF-2020/calculus-of-several-variables/geometry-of-planes-and-curves/general-parametric-curves/file3_brachistochrone.py b/FSF-2020/calculus-of-several-variables/geometry-of-planes-and-curves/general-parametric-curves/file3_brachistochrone.py
new file mode 100644
index 0000000..633e500
--- /dev/null
+++ b/FSF-2020/calculus-of-several-variables/geometry-of-planes-and-curves/general-parametric-curves/file3_brachistochrone.py
@@ -0,0 +1,13 @@
+from manimlib.imports import *
+
+class brachistochrone(Scene):
+    def construct(self):
+        curve = ParametricFunction(
+        lambda t: np.array([
+        0.5*(t - np.sin(t)),
+        0.5*(1 - np.cos(t)),
+        0
+        ]), t_max = np.pi
+        ).scale(5).rotate(540*DEGREES)
+        dot = Dot(color = RED, radius = 0.2)
+        self.play(FadeIn(curve), MoveAlongPath(dot, curve, run_time = 2))