1000 digits of pi in Python

Question

I have been thinking about this issue and I can\'t figure it out. Perhaps you can assist me. The problem is my code isn\'t working to output 1000 digits of pi in the Python

Answer 1

Here is a different way I found here --> Python pi calculation? to approximate python based on the Chudnovsky brothers formula for generating Pi which I have sightly modified for my program.

def pifunction():
    numberofdigits = int(input("please enter the number of digits of pi that you want to generate"))
    getcontext().prec = numberofdigits

def calc(n):
    t = Decimal(0)
    pi = Decimal(0)
    deno = Decimal(0)
    k = 0
    for k in range(n):
        t = (Decimal(-1)**k)*(math.factorial(Decimal(6)*k))*(13591409+545140134*k)
        deno = math.factorial(3*k)*(math.factorial(k)**Decimal(3))*(640320**(3*k))
        pi += Decimal(t)/Decimal(deno)
    pi = pi * Decimal(12)/Decimal(640320**Decimal(1.5))
    pi = 1/pi
    return str(pi)
print(calc(1))

I hope this helps as you can generate any number of digits of pi that you wish to generate.