Skip to main content
3 events
when toggle format what by license comment
Jun 7, 2021 at 5:07 comment added Hugh Please look up in help. First gives the first element of a list. Solve gives a list of lists and in this case there is only one element which I want.
Jun 6, 2021 at 22:42 comment added Qiaoke Zhang Thank you so much! But can I ask what "First@" means in the first part of your code?
Jun 6, 2021 at 18:38 history answered Hugh CC BY-SA 4.0