Used to indicate that a statement, though not necessarily entirely accurate or without exceptions, is good enough for basic or preliminary purposes; more or less; basically.

plural of under-approximation

plural of over-approximation

(mathematics) A principle of asymptotic analysis that relies on the cancellation of sinusoids with rapidly varying phase.

Alternative spelling of overapproximate

Alternative spelling of underapproximate

(mathematics) The "best" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating.

plural of Padé approximant

present participle of under-approximate

simple past tense and past participle of under-approximate