Where does this definition of variational problem come from?
This entry for variational problem is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does variational problem appear elsewhere on Lughet?
Yes — variational problem appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.