sage worksheet indexing issues
I'm trying to use a sage worksheet for a much different problem, but the issue I'm having can be expressed concisely as follows:
Let's say I have some list A. I want to make several lists (call them MDN(j)) where each list has entries '0,' the 4th to jth elements of A, '99'.
In the end, when I ask it to print MDN(j), it just prints '0,' the 4th to max(j)th elements of A, '99.' That is, if I have j in [4,..,9] and ask it to print MDN(6), it will print MDN(9).
Why can't I access indexed MDN's? Is there a better way to do this?
A=[1,2,3,4,5,6,7,8,9,10,11,12,13]
print('A=',A)
M=[0]
print('M=',M)
N=[99]
print('N=',N)
for j in [4,..,9]:
D=[A[i] for i in [1,2,..,j]]
print('D=',D)
MDN(j)=M+D+N
print('M+D+N=',MDN(j))
#why is this printing MDN(9)?
print(MDN(6))
output: https://i.sstatic.net/tr6S2vsy.png
See also https://math.stackexchange.com/q/4975...