py-cal/mathfunctions.py at master · adamawoolley/py-cal · GitHub

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def equation(equation):
    if '^' in equation:
        equation = str.replace(equation, '^', '**')

        return eval(equation)

def mean(numbers):
    mean = 0

    for i in numbers:
        mean += float(i)

    return mean / (len(numbers) - 1)

def rt(squared, power, places):
  guess = squared
  while True:

    change = ((guess**power) -  squared)/(power*guess**(power - 1))
    guess -= change

    if (change < 10**(-places)):
      break

  return round(guess, places)

def prime(tested_number):

    number = 2
    prime = True

    while Prime == True and number < tested_number / 2:

        if tested_number % number == 0:
            prime = False
        else:
            number += 1

    if prime == False:
        return 0

    else:
        return 1