As nouns the difference between approximation and underapproximation
is that
approximation is the act, process or result of approximating while
underapproximation is an approximation that is lower than the true value.
Other Comparisons: What's the difference?
approximation Noun
( en noun)
The act, process or result of approximating.
(mathematics) An imprecise solution or result that is adequate for a defined purpose.
(medicine) The act of bringing together the edges of tissue to be sutured.
Derived terms
* approximation problem
* approximation property
* approximation theory
See also
* interpolation


underapproximation English
Alternative forms
*underapproximation
Noun
( en noun)
An approximation that is lower than the true value.
Antonyms
* overapproximation 