computation vs calculation

computation and calculation both are nouns.

Word	Noun	Adjective	Verb	Adverb
computation	Yes	No	No	No
calculation	Yes	No	No	No

As nouns, computation and calculation are synonyms defined as:

computation and calculation: the procedure of calculating; determining something by mathematical or logical methods

Other synonyms of computation include computing.

As nouns, computation and calculation are synonyms defined as:

computation and calculation: problem solving that involves numbers or quantities

Other synonyms of computation include figuring, reckoning.

computation (noun)	calculation (noun)
the procedure of calculating; determining something by mathematical or logical methods	the procedure of calculating; determining something by mathematical or logical methods
problem solving that involves numbers or quantities	problem solving that involves numbers or quantities
	planning something carefully and intentionally