summable function造句

例句与造句

1. Functions in are sometimes called "'quadratically integrable functions "', "'square-integrable functions "'or "'square-summable functions "', but sometimes these terms are reserved for functions that are square-integrable in some other sense, such as in the sense of a Riemann integral.
2. It's difficult to find summable function in a sentence. 用summable function造句挺难的