Pontius - 1 year ago 217

Python Question

I'm trying to create a program that lets me calculate x(i)=1/i^2 for i=1,2,⋯,N

Here is my code so far:

`end = int(input("How many times do you want to calculate it?: "))`

x = 0.0

for i in range (0, end):

x = x + (1 / end **2)

print ("The sum is", x)

I seem to have a problem with it adding the different values of X together.

How would I do it if i need it to work?

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Answer Source

You aren't using your increment `i`

.

You are also dividing by zero.

Try:

```
end = int(input("How many times do you want to calculate it?: "))
x = 0.0
for i in range (1, end+1):
x = x + (1 / (i**2))
print ("The sum is", x)
```

That should provide the result you are looking for. Enjoy!

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