@Richard 'GAGCCTACTAACGGGAT' (your function) 'CATCGTAATGACGGCCU' would also give 7, even though the final letters are T vs U

Announcement: All materials for the Dyalog '23 presentations and workshops are now available to download individually or (except for GitHub contents) in bulk.

Announcement: BAA Vector Webinar in half an hour.

@Adám The download links redirect to the homepage

dyalog.com/uploads/conference/dyalog23/presentations/… redirects to dyalog.com for me

Right, I just noticed now.

@Adám So only distance on valid letters?

@Silas Normal distance, but pretend U and T are one and the same letter.

(of course, this implies input can have Us)