def main() -> None:
print('\tA * x^2 + B * x + C = 0\n')
def is_nozero(number: float) -> bool:
return is_this(number != 0, 'Не может быть нулём')
coef_a = FloatParameter('A', is_nozero)
coef_b = FloatParameter('B')
coef_c = FloatParameter('C')
def compute_and_print() -> None:
discr = _discriminant(coef_a.value, coef_b.value, coef_c.value)
print(f'Дискриминант = {discr}')
if discr < 0:
print('Нет корней')
else:
root1 = _first_root(discr, coef_a.value, coef_b.value)
print(f'1-й корень = {root1}')
if discr > 0:
root2 = _second_root(discr, coef_a.value, coef_b.value)
print(f'2-й корень = {root2}')
print()
_test_roots(root1, coef_a.value, coef_b.value, coef_c.value)
if discr > 0:
_test_roots(root2, coef_a.value, coef_b.value, coef_c.value)
mainloop((coef_a, coef_b, coef_c), compute_and_print)
def main() -> None:
def test_number(number: int) -> bool:
return is_this(number > 1, 'Введите число больше единицы.')
number = IntParameter('Число', test_number)
def compute_and_print() -> None:
prime_numbers = compute_prime_numbers(number.value)
if number.value in prime_numbers:
print('Простое число.')
else:
quotient: float = number.value
multipliers = []
while quotient > 1:
iterator = filter(lambda x: quotient % x == 0, prime_numbers)
try:
prime_number = next(iterator)
except StopIteration:
break
else:
multipliers.append(prime_number)
quotient /= prime_number
print(', '.join([str(i) for i in multipliers]), '.', sep='')
mainloop((number, ), compute_and_print)
def main() -> None:
x1_coor = FloatParameter('X1')
y1_coor = FloatParameter('Y1')
x2_coor = FloatParameter('X2')
def test_y2(value: float) -> bool:
return is_this(
x1_coor.value != x2_coor.value or y1_coor.value != value,
'Введите координаты двух разных точек.')
y2_coor = FloatParameter('Y2', test_y2)
print('\tY = k*X + b\n')
def compute_and_print() -> None:
if x1_coor.value == x2_coor.value:
print(f'X = {x1_coor.value:g}')
elif y1_coor.value == y2_coor.value:
print(f'Y = {y1_coor.value:g}')
else:
coef_k = _eq1_coeficient_k(x1_coor.value, y1_coor.value,
x2_coor.value, y2_coor.value)
coef_b = _eq1_coeficient_b(x1_coor.value, y1_coor.value, coef_k)
print(f'Y = {coef_k:g} * X + ({coef_b:g})')
print(f'Y2 = {coef_k * x2_coor.value + coef_b:g}')
mainloop((x1_coor, y1_coor, x2_coor, y2_coor), compute_and_print)
def main() -> None:
number = ArrayFloatParameter('Число')
def compute_and_print() -> None:
print(f'Среднее арифметическое: {arith_mean(number.value)}')
print(f'Среднее геометрическое: {geom_mean(number.value)}')
mainloop((number, ), compute_and_print)
def main() -> None:
volume = FloatParameter('Объем цилиндра, л', is_positive, from_l)
def compute_and_print() -> None:
diam1 = (4 * volume.value / pi * PHI)**(1 / 3)
diam2 = (4 * volume.value / pi / PHI)**(1 / 3)
height1 = _cylinder_height(volume.value, diam1)
height2 = _cylinder_height(volume.value, diam2)
print(f'D1 = {diam1 * 1e3:.0f} мм, H1 = {height1 * 1e3:.0f} мм\n'
f'D2 = {diam2 * 1e3:.0f} мм, H2 = {height2 * 1e3:.0f} мм')
mainloop((volume, ), compute_and_print)
def main() -> None:
force = FloatParameter('Осевая сила, Н', is_positive)
diam = FloatParameter('Диаметр трубы, мм', is_positive, from_mm)
def test_thickness(val: float) -> bool:
return (is_positive(val)
and is_this(val < diam.value / 2,
'Значение должно быть меньне половины диаметра'))
thick = FloatParameter('Толщина стенки, мм', test_thickness, from_mm)
length = FloatParameter('Длина рабочего участка, мм', is_positive, from_mm)
def compute_and_print() -> None:
moment = pi * (diam.value - thick.value)**3 * thick.value / 8
reserve = moment / force.value * (pi / length.value)**2 * ELAST
print(f'Запас прочности {reserve}')
mainloop((force, diam, thick, length), compute_and_print)
def main() -> None:
torque = FloatParameter('Крутящий момент, Нм', is_positive)
ext_diam = FloatParameter('Наружный диаметр, мм', is_positive, from_mm)
def check_inn_diam(val: float) -> bool:
return is_positive_or_zero(val) and is_this(
val < ext_diam.value, 'Не может быть меньше наружного диаметра')
inn_diam = FloatParameter('Внутренний диаметр, мм (0 для вала)',
check_inn_diam, from_mm)
def compute_and_print() -> None:
alpha = inn_diam.value / ext_diam.value
polar_moment = pi * ext_diam.value**3 / 16 * (1 - alpha**4)
stress = torque.value / polar_moment
print(f'Напряжение {stress / 1e6:.1f} МПа')
mainloop((torque, ext_diam, inn_diam), compute_and_print)
def main() -> None:
speed = FloatParameter('Brut-force speed, paswd/sec', is_positive, None,
1e6)
def compute_and_print() -> None:
for i in range(1, MAX_LEN_PASSWD + 2):
variants_number = SYMBOLS_NUMBER**i
time = variants_number / speed.value
try:
units = _optimal_size_units(time)
except StopIteration:
text_time = 'less than one second'
else:
text_time = _qty_units(time, units)
entropy = log(variants_number) / log(2)
print(f'{i:2d} symb. {variants_number:21d} variants, '
f'{entropy:2.0f} bits, {text_time}')
mainloop((speed,), compute_and_print)
def main() -> None:
print('\tx^3 + A * x^2 + B * x + C = 0\n')
a = FloatParameter('A')
b = FloatParameter('B')
c = FloatParameter('C')
def compute_and_print() -> None:
q = compute_q(a.value, b.value)
r = compute_r(a.value, b.value, c.value)
s = copmute_s(q, r)
print(f'Q = {q}, R = {r}, S = {s}')
for i, root in enumerate(roots(a.value, c.value, q, r, s)):
res = round(root**3 + a.value * root**2 + b.value * root + c.value,
6)
print(f'X_{i} = {root}, result = {res}')
mainloop((a, b, c), compute_and_print)
def main() -> None:
diam1 = FloatParameter('Diameter #1, mm', is_positive)
def test_diam2(val: float) -> bool:
return (is_positive(val)
and is_this(val != diam1.value, "Can't be equal to #1"))
diam2 = FloatParameter('Diameter #2, mm', test_diam2)
def compute_and_print() -> None:
dmin = min(diam1.value, diam2.value)
dmax = max(diam1.value, diam2.value)
mid = geom_mean([dmin, dmax])
rmin = (geom_mean([dmin, mid]) - dmin) / 2
rmax = (dmax - geom_mean([dmax, mid])) / 2
print(f'Middle diameter is {mid:%.2f}\n'
f'Radius near {dmin:g} is {rmin:.2f}\n'
f'Radius near {dmax:g} is {rmax:.2f}')
mainloop((diam1, diam2), compute_and_print)
def main() -> None:
sum_a = FloatParameter('Сумма N1 элементов', is_positive)
qty_a = IntParameter('N1', is_positive)
sum_b = FloatParameter('Сумма N2 элементов', is_positive)
def test_qty_b(value: float) -> bool:
return is_positive(value) and \
is_this(value != qty_a.value, 'Не может быть равным N1')
qty_b = IntParameter('N2', test_qty_b)
def compute_and_print() -> None:
step = _arith_seq_step(sum_a.value, qty_a.value, sum_b.value,
qty_b.value)
first = _arith_seq_first(sum_a.value, qty_a.value, step)
for i in reversed(range(1, max(qty_a.value, qty_b.value) + 2)):
print(round(_arith_seq_summa(i, first, step)), end=' ')
print('[{0}{1}]'.format('+' if step > 0 else '', round(step)))
mainloop((sum_a, qty_a, sum_b, qty_b), compute_and_print)
def main() -> None:
x1 = FloatParameter('x1')
y1 = FloatParameter('y1')
z1 = FloatParameter('z1')
x2 = FloatParameter('x2')
y2 = FloatParameter('y2')
z2 = FloatParameter('z2')
x3 = FloatParameter('x3')
y3 = FloatParameter('y3')
z3 = FloatParameter('z3')
print('\tA * xy + B * x + C * y = z\n')
def coeff(coords: Tuple[FloatParameter, ...]) -> float:
return (coords[0].value * coords[1].value * coords[2].value -
coords[3].value * coords[4].value * coords[5].value)
def compute_and_print() -> None:
k1 = coeff((z1, x2, y2, z2, x1, y1))
k2 = coeff((y1, x2, y2, y2, x1, y1))
k3 = coeff((x1, x2, y2, x2, x1, y1))
k4 = coeff((z3, x2, y2, z2, x3, y3))
k5 = coeff((y3, x2, y2, y2, x3, y3))
k6 = coeff((x3, x2, y2, x2, x3, y3))
try:
kc = (k4 * k3 - k1 * k6) / (k5 * k3 - k2 * k6)
if k3 == 0:
kb = (k4 - k5 * kc) / k6
else:
kb = (k1 - k2 * kc) / k3
ka = ((z1.value - x1.value * kb - y1.value * kc) / x1.value /
y1.value)
print(f'A = {ka}\nB = {kb}\nC = {kc}')
except ZeroDivisionError:
print_error('Деление на ноль!')
mainloop((x1, y1, z1, x2, y2, z2, x3, y3, z3), compute_and_print)
