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 | 1 | initial version |
You are trying to use the symbolic sum notation (intended for variable limits), but your sum is an ordinary one.
Also, indices start from 0 in Python and SageMath.
So instead of e.g.
sum(area[i] * sin(2*alpha[i])^2, i, 1, 5)
it should be e.g.
sum(area[i] * sin(2*alpha[i])^2 for i in range(5))
Note also that you can do things like
n = 5
alpha = vector([var('alpha_%d' % (k+1)) for k in range(n)])
to save yourself some typing.
| | 2 | No.2 Revision |
You As part of the symbolic summation you are trying to use the symbolic sum notation (intended for access e.g. alpha[i] where i is an indeterminate variable limits), but your sum is an ; that doesn't work. Instead you should use the ordinary one.
summation. Also, indices start from 0 in Python and SageMath.
So instead of e.g.
sum(area[i] * sin(2*alpha[i])^2, i, 1, 5)
it should be e.g.
sum(area[i] * sin(2*alpha[i])^2 for i in range(5))
Note also that you can do things like
n = 5
alpha = vector([var('alpha_%d' % (k+1)) for k in range(n)])
to save yourself some typing.
