def test_factorial(self, number, expected):
'''Test our factorial function'''
answer = factorial(number)
assert answer == expected
def rsum(n):
t = factorial(
4 * n) * (1103 + 26390 * n) / (factorial(n)**4 * 396**(4 * n))
return t + rsum(n - 1) if n else t
def sin_series_sum(x, n):
"""Uses Taylor's expansion to compute sin(x)
"""
term = (-1)**n / factorial(2*n + 1) * x**(2*n+1)
return term + sin_series_sum(x, n-1) if n else term
def rsum(n):
""" Caclulating pi using ramadans sum"""
t = factorial(
4 * n) * (1103 + 26390 * n) / (factorial(n)**4 * 396**(4 * n))
return t + rsum(n - 1) if n else t
def sin(x):
y = (x / 180) * pi()
result = y - ((y**3) / factorial(3)) + ((y**5) / factorial(5)) - (
(y**7) / factorial(7))
return result
def my_sin(x, n):
sine = 0
for i in range(n):
sine += ((-1)**i) * (x**(2. * i + 1)) / (factorial(2. * i + 1.))
return sine