Often times, we consult resources, like Abramowitz and Stegun's Handbook of Mathematical Functions https://www.math.ubc.ca/~cbm/aands/, NIST's database on special functions https://www.nist.gov/programs-projects/special-functions, or Mathematica to find identities which aid us with some kind of computation.
However, what if we want to know if we have found a new identity, want to systematically check against the above resources, and want to add to the library in the case the identity is new? Also, are there journals which, even today, still consider mathematical effort toward discovering identities of classical functions?
Best Answer
Q: Are there journals which would publish identities of classical functions?
A: Elsevier's Applied Mathematics and Computation has published quite a number of papers in that category, see this search listing.
It is ranked as a Q1 journal, open access is optional.