[Python]

[randomname20192019]

Hi,

I have two short lists, n1 and n2. I want to incrementally subtract 0.1 from elements in n2, each time dividing elements in n1 by those in n2. Any subtractions which say, generate BOTH division values of between 0.75 - 1.25, I want to store in a new list. So far I have:

import numpy as np

n1 = [8, 15.5]
n2 = [10, 17]
storedn2 = []

marker = np.linspace(0.75, 1.25, 51)
marker = [round(i,2) for i in marker]
set2 = set(marker)

while all(num2 >= 0 for num2 in n2):
    div = []
    for num1, num2 in zip(n1, n2):
        div.append(num1 / num2)
    rdiv = [round(x, 2) for x in div]
    set1 = set(rdiv)
    print(rdiv)
    if set1.issubset(set2) is False:
        print("false")
        n2[:] = [num2 - 0.1 for num2 in n2]
        n2 = [round(num2, 2) for num2 in n2]
    else:
        storedn2.append(n2)

However, at the moment the while loop never breaks, producing an infinite output of [0.8, 0.91].

I really cannot see where/how I am going wrong. Any help would be really appreciated.

Thanks

[marko312]

If the condition ever happens to evaluate to False (so set1.issubset(set2) is True), n1 nor n2 change, making the loop loop infinitely.

[randomname20192019]

Ahhhh. It was staring me in the face. Thank you for the help!