Keyword
envelope
- correspondence
- a case
- a box
- Frequency
- #1850
- Strokes
- 8
Readings
hán100%
Mnemonic
Letters placed in a container 凵
Stroke order
Composed of
Used in characters
Used in vocabulary
函数
function (math.)
函
envelope; case; letter
信函
letter; piece of correspondence (incl. email)
致函
to send a letter
邀请函
invitation letter
函授
to teach by correspondence
来函
incoming letter; letter from afar; same as 来信 (láixìn)
公函
official letter
函件
letters; correspondence
三角函数
trigonometric function
函谷关
Hangu Pass in modern day Henan Province, strategic pass forming the eastern gate of the Qin State during the Warring States Period (770-221 BC)
函馆
Hakodate, main port of south Hokkaidō 北海道 (Běihǎidào), Japan
连续函数
continuous function
回函
a reply (in writing)
指数函数
exponential function
反函数
inverse function (math.)
密函
secret letter
黑函
poison pen letter (Tw)
周期函数
periodic function
函授大学
correspondence university
波函数
wave function (in quantum mechanics)
奇函数
odd function (math.)
函送
(formal) to inform by letter; to submit in writing
偶函数
even function (math.)