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QuadraticCalc.py
44 строки
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slowy07
refactor: clean code
30 янв 2022, 04:33
30 янв 2022, 04:33
f0af0c4
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# GGearing # 02/10/2017 # Simple script to calculate the quadratic formula of a sequence of numbers and # recognises when the sequence isn't quadratic def findLinear(numbers): # find a & b of linear sequence a = numbers[1] - numbers[0] a1 = numbers[2] - numbers[1] if a1 == a: b = numbers[0] - a return (a, b) else: print("Sequence is not linear") sequence = [] first_difference = [] second_difference = [] for i in range(4): # input term = str(i + 1) inp = int(input("Enter term " + term + ": ")) sequence.append(inp) for i in range(3): gradient = sequence[i + 1] - sequence[i] first_difference.append(gradient) for i in range(2): gradient = first_difference[i + 1] - first_difference[i] second_difference.append(gradient) if second_difference[0] == second_difference[1]: # checks to see if consistent a = second_difference[0] / 2 subs_diff = [] for i in range(4): n = i + 1 num = a * (n * n) subs_diff.append((sequence[i]) - num) b, c = findLinear(subs_diff) print( "Nth term: " + str(a) + "n^2 + " + str(b) + "n + " + str(c) ) # outputs nth term else: print("Sequence is not quadratic")