1 files changed, 57 insertions, 0 deletions
diff --git a/FSF-2020/calculus/intro-to-calculus/intro-to-derivative/derivative3.py b/FSF-2020/calculus/intro-to-calculus/intro-to-derivative/derivative3.py
new file mode 100644
index 0000000..ebbacb1
--- /dev/null
+++ b/FSF-2020/calculus/intro-to-calculus/intro-to-derivative/derivative3.py
@@ -0,0 +1,57 @@
+from manimlib.imports import *
+class derivative3(GraphScene, Scene):
+	def setup(self):
+		Scene.setup(self)
+		#ZoomedScene.setup(self)
+	CONFIG = {
+		"y_max" : 8,
+        "y_min" : 0,
+        "x_max" : 11,
+        "x_min" : 0,
+        "y_tick_frequency" : 1, 
+        "x_tick_frequency" : 1, 
+        "axes_color" : WHITE, 
+        "num_graph_anchor_points": 3000, #this is the number of points that graph manim
+        "graph_origin" : ORIGIN+3*DOWN+6.5*LEFT,
+        "x_labeled_nums": list(range(0,12))[::1],
+        "y_labeled_nums": list(range(0,9))[::1],
+        "x_axis_label":"$t$",
+        "y_axis_label":"$s$",
+        "x_axis_width": 5,
+        "y_axis_height": 5,
+	}
+	def construct(self):
+		XTD = self.x_axis_width/(self.x_max - self.x_min)
+		YTD = self.y_axis_height/(self.y_max - self.y_min)
+
+		self.setup_axes()
+		graph_1 = self.get_graph(lambda x : -(x-2)**2+4, color = GOLD_A, x_min = 0, x_max = 1.5)
+		graph_2 = self.get_graph(lambda x : 1*x+2.25, color = GOLD_A, x_min = 1.5, x_max = 5)
+		graph_3 = self.get_graph(lambda x : 7.25, color = GOLD_A, x_min = 5, x_max = 8)
+		graph_4 = self.get_graph(lambda x : -3.625*x + 36.25, color = GOLD_A, x_min = 8, x_max = 10)
+
+		self.y_max = 5
+		self.x_max = 10
+		self.x_min = 0
+		self.y_min = -5
+		self.x_labeled_nums = list(range(0,11))
+		self.y_labeled_nums = list(range(-5,6))[::1]
+		self.x_axis_label = r"$t$"
+		self.y_axis_label = r"$v$"
+		self.y_tick_frequency = 1
+		self.x_tick_frequency = 1
+		self.graph_origin = ORIGIN+1*RIGHT
+		self.setup_axes()
+		graph_5 = self.get_graph(lambda x : 2*(x-2)+4, color = GREEN_SCREEN, x_min = 0, x_max = 1.5)
+		graph_6 = self.get_graph(lambda x : 3, color = GREEN_SCREEN, x_min = 1.5, x_max = 5)
+		graph_7 = self.get_graph(lambda x : 0, color = GREEN_SCREEN, x_min = 5, x_max = 8)
+		graph_8 = self.get_graph(lambda x : -3.625, color = GREEN_SCREEN, x_min = 8, x_max = 10)
+		line1 = DashedVMobject(Line(self.graph_origin+2.5*RIGHT, self.graph_origin+2.5*RIGHT+1.5*UP))
+		line2 = DashedVMobject(Line(self.graph_origin+4*RIGHT, self.graph_origin+4*RIGHT+1.835*DOWN))
+		self.play(ShowCreation(graph_1), ShowCreation(graph_5), run_time = 3)
+		self.play(ShowCreation(graph_2), ShowCreation(graph_6), run_time = 3)
+		self.add(line1)
+		self.play(ShowCreation(graph_3), ShowCreation(graph_7), run_time = 3)
+		self.add(line2)
+		self.play(ShowCreation(graph_4), ShowCreation(graph_8), run_time = 3)
+		self.wait(3)