interpolation vs reckoning

interpolation and reckoning both are nouns.

Word	Noun	Adjective	Verb	Adverb
interpolation	Yes	No	No	No
reckoning	Yes	No	No	No

As nouns, reckoning is a hypernym of interpolation; that is, reckoning is a word with a broader meaning than interpolation:

interpolation: (mathematics) calculation of the value of a function between the values already known
reckoning: problem solving that involves numbers or quantities

Other hypernyms of interpolation include calculation, computation, figuring.

interpolation (noun)	reckoning (noun)
the action of interjecting or interposing an action or remark that interrupts	the act of counting; reciting numbers in ascending order
(mathematics) calculation of the value of a function between the values already known	problem solving that involves numbers or quantities
a message (spoken or written) that is introduced or inserted	a bill for an amount due