Numbers

ChangingDecimal

ChangingDecimalExample

class ChangingDecimalExample(Scene):
    def construct(self):
        number = DecimalNumber(0).scale(2)
        def update_func(t):
            return t * 10
        self.add(number)
        self.wait()
        self.play(ChangingDecimal(number, update_func), run_time=3)
        self.wait()

ChangeDecimalToValue

ChangeDecimalToValueExample

class ChangeDecimalToValueExample(Scene):
    def construct(self):
        number = DecimalNumber(0).scale(2)
        self.add(number)
        self.wait()
        self.play(ChangeDecimalToValue(number, 20), run_time=3)
        self.wait()

CountInFrom