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-rw-r--r--FSF-2020/calculus-of-several-variables/div-curl-grad-and-all-that/gradient/file4-multidimensional-gradient.py113
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diff --git a/FSF-2020/calculus-of-several-variables/div-curl-grad-and-all-that/gradient/file4-multidimensional-gradient.py b/FSF-2020/calculus-of-several-variables/div-curl-grad-and-all-that/gradient/file4-multidimensional-gradient.py
deleted file mode 100644
index e9c8fd0..0000000
--- a/FSF-2020/calculus-of-several-variables/div-curl-grad-and-all-that/gradient/file4-multidimensional-gradient.py
+++ /dev/null
@@ -1,113 +0,0 @@
-from manimlib.imports import *
-import numpy as np
-
-
-class Hills(ThreeDScene):
- def construct(self):
- axes = ThreeDAxes(
- number_line_config={
- "color": GREEN,
- "include_tip": False,
- "exclude_zero_from_default_numbers": True,
- }
- )
- self.add(axes)
-
- self.set_camera_orientation(phi=45*DEGREES,theta=45*DEGREES,distance=40)
- #self.begin_ambient_camera_rotation(rate=0.5)
- self.wait()
-
- cylinder_1 = ParametricSurface(
- lambda u, v: np.array([
- u,
- v,
- 7*u*v/np.exp(u**2+v**2)
- ]),u_min=-3,u_max=3, v_min=-1,v_max=-0.95).set_color(YELLOW_E).rotate(PI/2).shift(LEFT).fade(0.5)
- cylinder = ParametricSurface(
- lambda u, v: np.array([
- u,
- v,
- 7*u*v/np.exp(u**2+v**2)
- ]),u_min=-3,u_max=3, v_min=-3,v_max=3).set_color(YELLOW_E).rotate(PI/2).shift(LEFT).fade(0.5)
- text_one = TexMobject(r"\textrm{Single variable functions slope up and down}")
- #name = TexMobject(r"\textrm{PROBE}").next_to(text_one, DOWN, buff = SMALL_BUFF).scale(0.7)
- text_one_a = TexMobject(r"\textrm{Position }", r" \rightarrow ").next_to(text_one, DOWN, buff = SMALL_BUFF)
- probe = Sphere(radius = 0.2).next_to(text_one_a, RIGHT).set_color(BLUE_E)
- text_one_b = TexMobject(r" \rightarrow ", r"\textrm{ slope }").next_to(probe, RIGHT, buff = SMALL_BUFF)
- name = TextMobject("PROBE").next_to(probe, DOWN, buff = SMALL_BUFF).scale(0.5)
- text = VGroup(text_one, text_one_a, probe, text_one_b, name).to_edge(UP+1.5*LEFT).scale(0.5)
-
- text_two = TexMobject(r"\textrm{Multivariable functions slope in infinitely many directions!}")
- #name_two = TexMobject(r"\textrm{PROBE2.0}").next_to(text_two, DOWN, buff = SMALL_BUFF).scale(0.7)
- text_two_a = TexMobject(r"\textrm{Position, Direction }", r" \rightarrow ").next_to(text_two, DOWN, buff = SMALL_BUFF)
- probe_two = Sphere(radius = 0.2).next_to(text_two_a, RIGHT).set_color(PURPLE_E)
- text_two_b = TexMobject(r" \rightarrow ", r"\textrm{ slope }").next_to(probe_two, RIGHT, buff = SMALL_BUFF)
- name_two = TextMobject("PROBE2.0").next_to(probe_two, DOWN, buff = SMALL_BUFF).scale(0.5)
- two = VGroup(text_two, text_two_a, probe_two, text_two_b, name_two).to_edge(UP+LEFT).scale(0.5).shift(3.5*LEFT)
-
-
-
-
-
-
- self.play(ShowCreation(cylinder_1))
- self.wait()
- self.add_fixed_in_frame_mobjects(text)
- self.wait(3.5)
- self.play(FadeOut(text))
- self.play(ReplacementTransform(cylinder_1, cylinder))
- self.wait()
- self.add_fixed_in_frame_mobjects(two)
- self.begin_ambient_camera_rotation(rate=0.5)
- self.wait(4)
-
-class OneMore(ThreeDScene, GraphScene):
- def setup(self):
- GraphScene.setup(self)
- ThreeDScene.setup(self)
-
- def construct(self):
- axes = ThreeDAxes(
- number_line_config={
- "color": GREEN,
- "include_tip": False,
- "exclude_zero_from_default_numbers": True,
- }
- )
- self.add(axes)
-
- self.set_camera_orientation(phi=90*DEGREES,theta=90*DEGREES,distance=40)
- #self.begin_ambient_camera_rotation(rate=0.5)
- self.wait()
-
- shape = ParametricSurface(
- lambda u, v: np.array([
- u,
- v,
- 2 - u**2 - v**2,
- ]),u_min=0,u_max =0.01, v_min=-2,v_max=2).set_color(GREEN_C)
-
- shape_A = ParametricSurface(
- lambda u, v: np.array([
- 0*u,
- 0,
- v,
- ]),u_min=-2,u_max = 2, v_min=-2,v_max=2).set_color(GREEN_C)
-
-
- '''
- path = self.get_graph(lambda u,v: np.array([
- u,
- 2 - u**2 - v**2]), u_min=-2,u_max=2, v_min=-2,v_max=2)
- location = np.array([-2,-2, -2]) #location: Point
- dot = Dot(location)
- '''
-
- self.play(ShowCreation(shape))
- self.add(shape_A)
- #self.play(ShowCreation(path), ShowCreation(dot))
- #self.play(MoveAlongPath(dot, path))
- #self.wait(3)
- self.play(ApplyMethod(shape.fade, 0.5))
- self.begin_ambient_camera_rotation(rate = 0.5)
- self.wait(3)