I looked up the manual and only find functions first([1,2,3]) second([1,2,3]) third([1,2,3]) ...
how to get an element by an index?
I looked up the manual and only find functions first([1,2,3]) second([1,2,3]) third([1,2,3]) ...
how to get an element by an index?
For example:
S:[a,b,c,d,e,f,g,h];
S[3]; $\Rightarrow$ c
S[7]; $\Rightarrow$ g