1
I’m having trouble performing list operations in Pyhton. I have a list of values.
frequencia = [1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 120, 150, 200,300,400,
500, 600, 700, 800, 900, 1000]
From this list I want to generate a new list of values obtained by applying the following formula in all frequency values.
at = (7.19 * (10**(-3)) + (6.09/((freq**2)+0.227) +
(4.81/(((freq-57)**2)+1.5)))) * freq**2 * (10**(-3))
Here’s the code I’m trying to.
frequencia = [1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96,97, 98, 99, 100, 120, 150, 200, 300,400,
500, 600, 700, 800, 900, 1000]
at_seco = []
for i in range(len(frequencia)):
while len(freq)<len(frequencia):
freq = frequencia[0]
freq = freq + 1
return freq
at = (7.19 * (10**(-3)) + (6.09/((freq**2)+0.227) +
(4.81/(((freq-57)**2)+1.5)))) * freq**2 * (10**(-3))
at_seco.append(at)
return at_seco
That was exactly my question, thank you very much
– thales.marques