animating_graph.py

from manim import *

class SimpleFrequency(Scene):
    def construct(self):
        ax = Axes(
            x_range=[-10, 10.3, 1],
            y_range=[-1.5, 1.5, 1],
            x_length=10,
            x_axis_config={
                "numbers_to_include": np.arange(-10, 10.01, 2)
            }
        )
        graph_1 = ax.plot(lambda x : np.sin(x), color=GREEN)
        graph_2 = ax.plot(lambda x : np.sin(2 * x), color=RED)

        graph_group = VGroup(graph_1, graph_2)

        graph_3 = ax.plot(lambda x : np.sin(2 * x) + np.sin(x), color=RED)

        self.play(Create(ax))
        self.play(Create(graph_group), run_time=2)
        self.play(Transform(graph_group, graph_3), run_time=3)
        self.wait(2)