Lab_3/16var (IV semester) .py

import math
from random import choice
from string import ascii_uppercase

print("Lab_3 / 16var")
print("Task 1")

a = 0.1
b = 1.0
h = 0.1
n = 16

print(" x  |    Y(x)    |    S(x)")
x = a
while x <= b:
    y = math.cos(x * math.sin(math.pi / 4)) * math.exp(x * math.cos(math.pi / 4))
    sum = 0
    k = 0
    while k < n:
        sum += ((math.cos(k * math.pi / 4)) / (math.factorial(k))) * x ** k
        k += 1
    print(x, "|", "%.8f" % y, "|", "%.8f" % sum)
    x = round(x + h, 1)

print("Task 2")
find = "A"
rand_str = ''.join(choice(ascii_uppercase) for i in range(40))
print(rand_str)
print("Number of occurrences:", rand_str.count(find))
while True:
    num_sym = rand_str.find(find)
    if (num_sym == -1):
        break
    tmp = rand_str[:num_sym]
    for i in range(0, len(find)):
        tmp += " "
    tmp += rand_str[num_sym + 1:]
    rand_str = tmp
print(rand_str)