Shallan is ig.
I am a stickist but also a sticky because I appreciate continuity. In math, a certain point is continuous if:
1) a function is defined at that point.
2) The limit exists (is the same for x->- and x->+)
3) The limit and the value of the function are equivalent.
ofc I bring math into this...
although I hate it right now because when you take a mash-up of precalc, alg 2, and trig-
all it means is a lot of homework