Not really an English thing so much as a math thing that makes too much sense to not use elsewhere. For instance, in math you might have x[3 - 7{3y + (a * b)}]. I haven’t actually seen them go deeper than three sets, though, so I’m not sure what would be next.
I’ve never seen that being used, but it seems it’s a thing in English. What if you wanna best deeper? Do you go {}? Then <>? «»?
Not really an English thing so much as a math thing that makes too much sense to not use elsewhere. For instance, in math you might have x[3 - 7{3y + (a * b)}]. I haven’t actually seen them go deeper than three sets, though, so I’m not sure what would be next.
at that point I start recycling them, and go back to parenthesis.
so when bp = 300x - 3, this:
4( 4[ 4{ 15bp + 10 } - 375 ] - 2250 ) - 15000
would turn to
4( 4[ 4{ 15( 300x - 3) + 10 } - 375 ] - 2250 ) - 15000
perhaps not the best, but I rather stick to conventional symbols rather than using… idk, question marks? that’d be funny as hell, though
just picture it:
4© 4« 4¿ 15bp + 10 ? - 375 » - 2250 🄯 - 15000