Anonymous at Wed, 6 Nov 2024 22:40:53 UTC No. 16465423

>>16465410
no, the subscripts appear to be meaningless. That delta symbol is typically only used to signify partial derivatives but there don't appear to be any derivatives here. The summation symbol is meaningless as there is no index set indicated nor any indices in the formula it's supposed to be operating on.

Anonymous at Fri, 8 Nov 2024 07:11:12 UTC No. 16466886

>>16465410
This could be some sort of step wise function part.
Variables without context are meaningless.

Anonymous at Fri, 8 Nov 2024 07:16:14 UTC No. 16466889

>>16466886
To add more details to this...If I would have to guess, they are calculating the interference of a wave. Might be oscillations of audio waves

https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/16%3A_Waves/16.06%3A_Interference_of_Waves


https://en.wikipedia.org/wiki/Wave_interference