onto background

onto

/ˈɒn.tuː/ /ˈɑn.tu/

Illustration onto - Image 1

adjective

满射的，盖射的

(of a function) Assuming each of the values in its codomain; having its range equal to its codomain.

Examples :

"Considered as a function on the real numbers, the exponential function is not onto."

如果将指数函数看作实数域上的函数，它就不是满射的。

math function essential

Illustration onto - Image 1

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preposition

到...上面，在...之上

Upon; on top of.

Examples :

"My cat just jumped onto the keyboard."

我的猫刚刚跳到键盘上面了。

position place essential

Illustration onto - Image 1

preposition

意识到，察觉到。

Examples :

"The thought-police were onto my plans of world domination."

思想警察已经意识到我统治世界的计划了。

attitude mind essential

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preposition

映上的，满射的。

Being an onto function with a codomain of (see below).

Examples :

"The exponential function maps the set of real numbers onto the set of positive real numbers."

指数函数将实数集映射到正实数集上，并且是满射的。

math function essential