opensource/manim
1
0
Fork 0
mirror of https://github.com/3b1b/manim.git synced 2025-08-01 08:54:38 +08:00
Code Issues Packages Projects Releases Wiki Activity

Setup for GraphOnePlusOneOverX

Browse Source
This commit is contained in:
Grant Sanderson
2018-05-16 15:35:42 -07:00
parent e43ccb144d
commit d8ed9d188b
1 changed files with 56 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
active_projects/alt_calc.py
View File

@ -2210,7 +2210,7 @@ class ShowPhiAsFixedPoint(ShowRepeatedApplication):
num_formula
)
self.play(
group.arrange_submobjects, DOWN,
group.arrange_submobjects, DOWN,
{"buff": LARGE_BUFF, "aligned_edge": LEFT},
group.to_corner, UL
)
@ -2256,3 +2256,58 @@ class ShowPhiAsFixedPoint(ShowRepeatedApplication):
)
)
self.wait()
class GraphOnePlusOneOverX(GraphScene):
CONFIG = {
"x_min": -6,
"x_max": 6,
"x_axis_width": 12,
"y_min": -4,
"y_max": 4,
"y_axis_height": 8,
"y_axis_label": None,
"graph_origin": ORIGIN,
"num_graph_anchor_points": 100,
}
def construct(self):
self.setup_axes()
self.draw_graphs()
def setup_axes(self):
GraphScene.setup_axes(self)
self.x_axis.add_numbers(*range(-6, 0) + range(1, 7))
self.y_axis.label_direction = RIGHT
self.y_axis.add_numbers(*range(-3, 0) + range(1, 4))
def draw_graphs(self):
lower_func_graph, upper_func_graph = func_graph = VGroup(*[
self.get_graph(
lambda x: 1.0 + 1.0 / x,
x_min=x_min,
x_max=x_max,
color=BLUE,
)
for x_min, x_max in (-10, -0.1), (0.1, 10)
])
func_graph_label = self.get_graph_label(
upper_func_graph, "y = 1 + \\frac{1}{x}",
x_val=6, direction=UP
)
identity_graph = self.get_graph(
lambda x: x, color=GREEN
)
identity_graph_label = self.get_graph_label(
identity_graph, "y = x",
x_val=3, direction=UL, buff=SMALL_BUFF
)
# for label in func_graph_label, identity_graph_label:
# label[:2].set_color(WHITE)
self.play(ShowCreation(func_graph))
self.play(Write(func_graph_label))
self.play(ShowCreation(identity_graph))
self.play(Write(identity_graph_label))
self.wait()