interpolation

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ɪnˌtɜːpəˈleɪʃən/

US:USA pronunciation: IPAUSA pronunciation: IPA/ɪnˌtɝpəˈleɪʃən/

US:USA pronunciation: respellingUSA pronunciation: respelling(in tûr′pə lā′shən)

in•ter•po•la•tion (in tûr′pə lā′shən),USA pronunciation n.

the act or process of interpolating or the state of being interpolated.
something interpolated, as a passage introduced into a text.
Mathematics
- the process of determining the value of a function between two points at which it has prescribed values.
- a similar process using more than two points at which the function has prescribed values.
- the process of approximating a given function by using its values at a discrete set of points.

in•ter•po•late /ɪnˈtɜrpəˌleɪt/USA pronunciation v. [~ + object], -lat•ed, -lat•ing.

to introduce (something additional or extra) between other things or parts; insert;
interject;
interpose:to interpolate an unwanted comment.

in•ter•po•la•tion /ɪnˌtɜrpəˈleɪʃən/USA pronunciation n. [countable]

in•ter•po•late (in tûr′pə lāt′),USA pronunciation v., -lat•ed, -lat•ing.
v.t.

to introduce (something additional or extraneous) between other things or parts; interject;
interpose;
intercalate.
Mathematicsto insert, estimate, or find an intermediate term in (a sequence).
to alter (a text) by the insertion of new matter, esp. deceptively or without authorization.
to insert (new or spurious matter) in this manner.

v.i.

Latin interpolātus past participle of interpolāre to make new, refurbish, touch up, equivalent. to inter- inter- + -polā- verb, verbal stem (akin to polīre to polish) + -tus past participle suffix
1605–15

in•ter′po•lat′er, in•ter′po•la′tor, n.
in•ter′po•la′tive•ly, adv.

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