1 files changed, 61 insertions, 0 deletions
diff --git a/FSF-2020/calculus/series-and-transformations/Laplace Transformations/file4_diracBasic.py b/FSF-2020/calculus/series-and-transformations/Laplace Transformations/file4_diracBasic.py
new file mode 100644
index 0000000..0c7f8e4
--- /dev/null
+++ b/FSF-2020/calculus/series-and-transformations/Laplace Transformations/file4_diracBasic.py
@@ -0,0 +1,61 @@
+from manimlib.imports import *
+import math
+import pylatex
+
+class intro(GraphScene,Scene):
+    CONFIG = {
+        "x_min": -9,
+        "x_max": 9,
+        "y_min": -5,
+        "y_max": 5,
+        "graph_origin": ORIGIN+DOWN,
+        "function_color": RED,
+        "axes_color": GREEN,
+        "x_axis_label": "$x$",
+        "y_axis_label": "$\delta (x)$",
+        "y_axis_height":4,
+        "x_axis_width":7
+    }
+    def setup(self):
+        GraphScene.setup(self)
+        Scene.setup(self)
+    def construct(self):
+        introText=TextMobject("Dirac","Delta","Function")
+        introText.set_color_by_tex_to_color_map({"Dirac":BLUE,"Delta":YELLOW})
+        introText.scale(0.8)
+        self.play(Write(introText))
+        self.wait(0.5)
+        self.play(ApplyMethod(introText.shift,3*UP))
+        formulaa=TextMobject("$\delta (x)=\infty$","$x=0$")
+        formulab=TextMobject("$\delta (x)=0$","$x\\neq 0$")
+        formulaa.set_color_by_tex_to_color_map({"$x=0$":RED})
+        formulab.set_color_by_tex_to_color_map({"$x\\neq 0$":RED})
+        formulaa.scale(0.8)
+        formulab.scale(0.8)
+        formulab.shift(0.5*DOWN)
+        self.play(FadeIn(formulaa),FadeIn(formulab))
+        self.wait(1)
+
+        self.play(FadeOut(formulaa),FadeOut(formulab))
+
+        x_each_unit = self.x_axis_width / (self.x_max - self.x_min)
+        y_each_unit = self.y_axis_height / (self.y_max - self.y_min)
+
+        self.setup_axes(animate=True)
+        self.wait(0.8)
+
+        functionUpLine=Line(start=self.graph_origin,end=self.graph_origin+UP*y_each_unit*5,color=RED)
+        functionDownLine=Line(start=self.graph_origin+UP*y_each_unit*5,end=self.graph_origin,color=RED)
+        functinLeftLine=Line(start=self.graph_origin+LEFT*x_each_unit*9,end=self.graph_origin,color=RED)
+        functionRightLine=Line(start=self.graph_origin,end=self.graph_origin+RIGHT*x_each_unit*9,color=RED)
+        functionUpLine.shift(0.02*LEFT)
+        functionRightLine.shift(0.02*RIGHT)
+
+        self.play(ShowCreation(functinLeftLine))
+        self.play(ShowCreation(functionUpLine))
+        self.play(ShowCreation(functionDownLine))
+        self.play(ShowCreation(functionRightLine))
+        self.wait(1.5)
+
+        self.play(FadeOut(self.axes),FadeOut(introText),FadeOut(functinLeftLine),FadeOut(functionRightLine),FadeOut(functionUpLine),FadeOut(functionDownLine))
+        self.wait(0.5)