English
Preposition
onto
- upon, on top of
#* My cat just jumped onto the keyboard.
- informal aware of
#* The thought-police were onto my plans of World domination.
- mathematics being an onto function with a codomain of (see below)
#* The exponential function maps the set of real numbers onto the set of positive real numbers.
Adjective
onto
- mathematics assuming each of the values in its codomain; having its range equal to its codomain (said of a function)
#* Considered as a function on the real numbers, the exponential function is not onto.
Synonyms
mathematics surjective
Derived terms
mathematics one-to-one and onto
See also
mathematics one-to-one, injective, bijective
Translations
Swedish: surjektiv
Category:English prepositions
fr:onto
io:onto
it:onto
st:onto
vi:onto
zh:onto
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