what is wrong with this function
def newSequence(ns, n, d):
nValue = 1
for a in ns:
ns[a] -= n*xValue**d
compiler error message
line 3, in newSequence
for i in ns:
TypeError: 'int' object is not iterable
The compiler error message means that in your call of the function 'newSequence' the first argument 'ns' is an integer value, though the declaration of that function requires that 'ns' is a list.
Moreover, it seems that in the line ns[a] -= n*xValue**d instead of 'xValue' there should 'nValue'.
Finally, the loop iteration for a in ns: should be changed to for a in range(len(ns)):
So the resulting function must be of the form:
def newSequence(ns, n, d): nValue = 1 for a in range(len(ns)): ns[a] -= n*nValue**d return ns;