Our pedantry is getting out of control. We all need to get a life, but it's too damn hot. OBTW, according to YOUR Oxford dictionary you are right, it is maths, but not in the US according to their definition (math). I hope I have not lost favor, er favour, with all of the whiners, er whingers, while, uh sorry whilst, I comment.
Hulk, it's all in good fun mate, chap, my friend, dude.
Welcome, and back to our regularly scheduled (rostered) program.
There's another one for you SOP, to schedule (to roster)or a schedule (roster).