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I need to solve the following equation in Python
N is an integer and positive value. Calculate and show the value of E according to the following formula:
E = 1 + 1/1! + 1/2! + 1/3! + ... + 1/N!
My attempt:
n = int(input("Digite o valor de B: "))
e = 1
i = 1
while (i <= n):
fat = 1
j = 1
while (j <= i):
fat = fat*j
e = e + 1/fat
break
break
print("Valor de E = ", e)
1
In python, the break does not terminate the loop, but interrupts it immediately. Unlike other languages, you do not have a keyword like fim-while or similar. The compiler/interpreter knows where the while ends looking at the identation.
Also, you had forgotten to increase the values i and j.
Another mistake was that the e = e + 1/ fat should be after the while internal, and not within it.
Another detail is that you are reading is a value N, and not a value B.
And I also put a print() the more to break a line before showing the output.
Here’s what your code looks like with these fixes:
n = int(input("Digite o valor de N: "))
e = 1
i = 1
while (i <= n):
fat = 1
j = 1
while (j <= i):
fat = fat * j
j = j + 1
e = e + 1 / fat
i = i + 1
print()
print("Valor de E =", e)
When you report 25 as the value of N, this is the way out:
Valor de E = 2.7182818284590455
Browser other questions tagged python loop while factorial
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Adjusting the question to be impersonal and can help other people in the future as well.
– Alexandre Cavaloti
Can you ask the question at least one of your attempts? It will be easier to identify your difficulty.
– Woss
All right, just a second.
– Alexandre Cardoso
@What then? She gave up the question?
– Woss
@Andersoncarloswoss Sorry, I thought I edited and it wasn’t, now I edited.
– Alexandre Cardoso
I disagree with the closure of this question. The first version of it was in fact not very good, but currently there is nothing wrong with it. I voted to reopen.
– Victor Stafusa