余
+
余弦
Simplified
余弦
Traditional
餘弦
Pinyin
yú xián
Definition
(math.) cosine
这个余弦很关键
Zhège yú xián hěn guānjiàn
This cosine is very important
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You might also see
三弦
sān xián
sanxian, large family of 3-stringed plucked musical instruments, with snakeskin covered wooden soundbox and long neck, used in folk music, opera and Chinese orchestra
上弦
shàng xián
to wind up a watch, clockwork toy etc.; to tighten the string of a bow, violin etc.; first quarter (phase of the moon)
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