Hi guys! I hope you can assist me with understanding and fixing my error
below. Thanks for this amazing forum :)
def sum2(N):
b = np.arange(1,N+1,1)
mylist = [ ]
for i in b:
terms = 2*(1+3**(i-1))
a = mylist.append[terms]
return np.sum(mylist)
print(sum2(N=50))
---------------------------------------------------------------------------TypeError
Traceback (most recent call
last)<ipython-input-65-bc89ed710705> in <module>() 10 return
np.sum(mylist) 11 ---> 12 print(sum2(N=50))
<ipython-input-65-bc89ed710705> in sum2(N) 7 8
terms = 2*(1+3**(i-1))----> 9 mylist.append[terms] 10
return np.sum(mylist) 11
TypeError: 'builtin_function_or_method' object is not subscriptable
Aaliyah
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