Can start with using regression rather than handdrawn trendlines, then you could think about calculus from maths , momentum from physics, literally tonnes of practical concepts that one can apply.
That is correct, in science terms, RL are superior to hand drawn stuff in the exact sense and in this sense only that they are objectively calculated by a regression matrix. It is basic high school maths, if you don't have it then .... too bad and nothing to do with computers per se.
Anyone...
I don't know about unconventional but adding basic maths to TA in general will make huge improvements, the hedges are already doing it whilst us retail are expected to be suckers for the usual gunk.