'int' object is not callable error in python
callable, int, python
Solution
You are trying to use `2` as a function:
2(-1/6.)
Insert a `*` to multiply:
2*(-1/6.)
or as a full expression:
s=s+d*2*(-1/6.)*(u-1)*(u-2)*(u+2)*(u-4)
Problem
I'm getting this error: ``` Traceback (most recent call last): File "C:\Users\George\Desktop\ex3.py", line 15, in <module> s=s+d*2(-1/6.)*(u-1)*(u-2)*(u+2)*(u-4) TypeError: 'int' object is not callable ``` Here is my code: ``` x=input() z=input() n=input() while x>=z: x=input() z=input() while n<0: n=input() while n>0: d=(z-x)/1.*n k=1 s=(d/2.)*((-1/6.)*(x-1)*(x-2)*(x+2)*(x-4)+(-1/6.)*(z-1)*(z-2)*(z+2)*(z-4)) while k<=n-1: u=x+k*d s=s+d*2(-1/6.)*(u-1)*(u-2)*(u+2)*(u-4) k=k+1 print "%.3f" %s x=input() z=input() n=input() if n>0: while x>=z: x=input() z=input() ```