1、In mathematics, a surjection is a function that maps every element in the codomain to at least one element in the domain.
在數(shù)學(xué)中,滿射是一種函數(shù),它將值域中的每個元素映射到至少一個定義域中的元素。
2、A surjection is also known as an "onto" function, as it covers the entire range of the codomain.
滿射也被稱為"onto"函數(shù),因為它覆蓋了整個值域的范圍。