recurring decimal vs circulating decimal

recurring decimal and circulating decimal both are nouns.

Word	Noun	Adjective	Verb	Adverb
recurring decimal	Yes	No	No	No
circulating decimal	Yes	No	No	No

As nouns, recurring decimal and circulating decimal are synonyms defined as:

recurring decimal and circulating decimal: a decimal with a sequence of digits that repeats itself indefinitely

Other synonyms of recurring decimal include repeating decimal.

recurring decimal (noun)	circulating decimal (noun)
a decimal with a sequence of digits that repeats itself indefinitely	a decimal with a sequence of digits that repeats itself indefinitely