# Error when trying to integrate

This is what I want to do in Sage. It can be done very easily in Desmos. https://www.desmos.com/calculator/7oc...

I am just trying to do this integral in Sage. When I do it the answer I get is

f(x) = (1/3.33sqrt(2pi))exp((-1/2)((x-9.486)/3.33)^2)

N(definite_integral(f(x), x, 6, 23))

5.35572539176154

Don't use "N": just use

`2*pi`

and`exp(...)`

.I did the changes, now I get a wrong answer.

I think the problem is parentheses, not Sage.

`1/3.33 * sqrt(2*pi)`

is equal to`sqrt(2*pi)/3.33`

, whereas I think you meant to have all of that in the denominator. So you need parentheses:`1/(3.33 * sqrt(2*pi))`

, as in @eric_g's answer.