4 Mar
2020
4 Mar
'20
3:08 p.m.
example code there does not work here for some reason (compile error).
Interesting ... I am using it myself and it works here. I wonder if there is something odd in what the wiki outputs. Or maybe you copy & pasted the "code metapost" inside an existing "code metapost" block. If you have time to check, what's your error message? Or alternatively, do you have a minimal survey where I can see the failure myself?
0.001
I won't pretend to understand what that is all about. Very weird indeed.