双曲余弦

Traditional form:

雙曲餘弦

Pinyin (reading):

shuāngqūyúxián

Definitions:

• hyperbolic cosine or cosh (math.)

Characters:

• 双 - pair, couple; both; measure word for things that come in pairs
• 曲 - crooked, bent; wrong, false
• 余 - surplus, remainder; surname
• 弦 - bow string; string instrument; hypotenuse

Traditional characters:

• 雙 - pair, couple; both; measure word for things that come in pairs
• 曲 - crooked, bent; wrong, false
• 餘 - surplus, remainder, excess
• 弦 - bow string; string instrument; hypotenuse