What is delta n and delta t?

Question

Physics

A week ago I solved problems on fluctuations, but now I can’t remember the formula in order to carry out calculations in the program. ATP in advance)

Answer 1

Delta - difference (change).
ΔT - temperature change. Although, maybe time, because there is a dimension with , and not ⁰C . Although it is unlikely that you indicated the time in the form of a delta.
Δn₂ - change of the second value of n. I suspect that this refers to the difference n₂-n₁.
PS: In general, everything is bad. What a mess :-)