def construct(self):
term_en = CyrTex(r"Dynamic Programming").scale(2)
#term_bg = CyrTex(r"\foreignlanguage{bulgarian}{\textit{Динамично програмиране}}").scale(1.5)
group = VGroup(term_en)
self.play(FadeIn(term_en))
#term_bg.next_to(term_en, direction=DOWN)
self.wait(2)
#self.play(FadeIn(term_bg), group.center)
self.wait(5)
self.play(FadeOut(group))
photo = ImageMobject("Richard_Ernest_Bellman.jpg").set_height(6)
title_below = CyrTex(
r"\foreignlanguage{english}{Richard Ernest Bellman}")
group2 = Group(photo, title_below)
self.play(FadeIn(photo), photo.to_edge, UP)
title_below.next_to(photo, direction=DOWN)
self.play(Write(title_below, run_time=1))
self.wait(5)
self.play(FadeOut(group2))
self.wait(5)
for x, y in random_points:
print(f"[{x}, {y}]")
coin = Coin("10").move_to(np.array((x, y, 0))).shift_onto_screen()
self.add(coin)
self.wait(5)
new_coin = Coin("10").move_to(np.array((2, -2, 0)))
self.play(FadeIn(new_coin))
self.wait(10)
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.coin1 = Coin(1)
self.coin2 = Coin(2)
self.coin5 = Coin(5)
self.coins = [self.coin1, self.coin2, self.coin5]
self.mins = [MinCount(i) for i in range(10)]
self.eq = CyrTex('$=$')
self.plus = CyrTex('$+$')
self.min_word = CyrTex('$min$')
self.cdots = CyrTex(r'$\cdots$')
self.zero = CyrTex('$0$')
self.question_mark = CyrTex('?')
self.same_min = [[] for _ in self.mins]
self.iteration_groups = []
def construct(self):
amount_cents_small = CyrTex(
r'\foreignlanguage{bulgarian}{142 ¢} $=$').scale(2)
amount_cents_small.shift(amount_cents_small.get_width() * LEFT +
UP * 0.5)
self.add(amount_cents_small)
mo_group = Group()
for loop in range(1):
for group in groups:
self.remove(mo_group)
# self.play(FadeOut(mo_group, run_time=0.05))
mo_group = Group()
uniq, counts = numpy.unique(group, return_counts=True)
print(uniq)
first = None
for coin, count in zip(uniq, counts):
print(f"{count} x {coin}")
mo_coins = [Coin(coin) for _ in range(count)]
mo_group.add(*mo_coins)
if first:
mo_coins[0].next_to(first, DOWN)
first = mo_coins[0]
for prev, cur in zip(mo_coins, mo_coins[1:]):
cur.next_to(prev, RIGHT)
brace = Brace(mo_group, direction=LEFT)
brace2 = BraceLabel(mo_group,
r'\foreignlanguage{english}{$' +
str(len(group)) + "$ coins}",
label_constructor=CyrTex)
mo_group.add(brace, brace2)
mo_group.shift(
amount_cents_small.get_critical_point(RIGHT) -
brace.get_tip() +
X_AXIS * DEFAULT_MOBJECT_TO_MOBJECT_BUFFER)
self.add(mo_group)
# self.play(FadeIn(mo_group, run_time=0.05))
self.wait(0.2)
self.wait()
self.play(FadeOut(amount_cents_small), FadeOut(mo_group))
self.wait(10)
def construct(self):
all_coins = Group()
all_coins.add(Coin(1))
all_coins.add(Coin(5))
all_coins.add(Coin(10))
all_coins.add(Coin(20))
all_coins.add(Coin(25))
all_coins.arrange()
self.add(all_coins)
all_coins.to_edge(DOWN, buff=LARGE_BUFF)
amount_cents_small = CyrTex(
r'\foreignlanguage{bulgarian}{$40$ ст.} =').scale(2)
amount_cents_small.shift(amount_cents_small.get_width() * LEFT + UP)
self.add(amount_cents_small)
brace = MathTex(r'\underbrace{\qquad\qquad\qquad\qquad}').scale(
1).rotate(-PI / 2)
brace.next_to(amount_cents_small, RIGHT)
self.play(FadeIn(brace))
cents25 = all_coins[4]
cents10 = all_coins[2]
cents5 = all_coins[1]
buff = DEFAULT_MOBJECT_TO_MOBJECT_BUFFER
cents25_1 = cents25.copy()
edge = brace.get_critical_point(RIGHT) + RIGHT * 0.75
up = (cents25_1.get_height() + buff) * UP
down = (cents25_1.get_height() + buff) * DOWN
self.play(cents25_1.move_to, edge + up)
cents10_1 = cents10.copy()
self.play(cents10_1.move_to, edge)
cents5_1 = cents5.copy()
self.play(cents5_1.move_to, edge + down)
self.wait()
wrong_group = Group(cents25_1, cents10_1, cents5_1)
cross = Cross(wrong_group)
self.add(cross)
self.wait()
self.play(
LaggedStart(
*[FadeOut(wrong_group),
FadeOut(cross),
FadeOut(brace)],
lag_ratio=0.2))
brace = MathTex(r'\underbrace{\qquad\qquad\quad}').scale(1).rotate(
-PI / 2)
brace.next_to(amount_cents_small, RIGHT)
self.play(FadeIn(brace))
cents20 = all_coins[3]
up = (cents20.get_height() + buff) * UP * 0.5
down = (cents20.get_height() + buff) * DOWN * 0.5
cents20_1 = cents20.copy()
self.play(cents20_1.move_to, edge + up)
cents20_2 = cents20.copy()
self.play(cents20_2.move_to, edge + down)
self.wait()
self.play(*[FadeOut(x) for x in self.mobjects])
self.wait(10)