Revision history [back]
 | 1 | initial version |
If v is in R then you can use e.g. the condition v[:3] == '$a_' to check that the first three characters in v are $a_.
sage: [v for v in R if v[:3] == '$a_']
['$a_{3}$', '$a_{5}$']
| | 2 | No.2 Revision |
If v is in R then you can use e.g. the condition v[:3] == '$a_' to check that the first three characters in v are $a_.
sage: [v for v in R if v[:3] == '$a_']
['$a_{3}$', '$a_{5}$']
sage: for v in R:
....: if v[:3] == '$a_':
....: print(v)
....:
$a_{3}$
$a_{5}$
