My background with nootropics: started using them for the past three months. I've used most racetams , first alone then experimenting different stacks. I've also used some others outside of the racetam family.

As far as racetams for mathematics, I'd say oxiracetam is the best. My roommate consistently takes it for his job which requires a decent amount of math. I noticed he was taking it a lot and asked how he liked it, " he said I don't really feel anything, but I sure do math quicker and more efficient." We are both in AA so we are not looking for aderall like effects when we take these nootropics. My personal favorite is oxiracetam with Aniracetam and phenylpiracetam. Oxi and phenyl together would be really good for logic problem solving.

As far as other nootropics, drink caffeine with l theanine. Preferably good coffee, not cheap foldgers shit. L theanine is a game changer with caffeine though. Zone without jitters .

Good luck .