 | 1 | initial version |
I write the following in the SageMath cloud:
Bob="xyz"
sB = subsets(Bob)
print map(str, sB)
print map(str, sB)
and the output is:
['[]', "['x']", "['y']", "['x', 'y']", "['z']", "['x', 'z']", "['y', 'z']", "['x', 'y', 'z']"]
[]
I.e, after the first "map", the variable "sB" becomes empty!
Why does this happen?
| | 2 | retagged |
I write the following in the SageMath cloud:
Bob="xyz"
sB = subsets(Bob)
print map(str, sB)
print map(str, sB)
and the output is:
['[]', "['x']", "['y']", "['x', 'y']", "['z']", "['x', 'z']", "['y', 'z']", "['x', 'y', 'z']"]
[]
I.e, after the first "map", the variable "sB" becomes empty!
Why does this happen?
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