余弦 Save Sign in to save words Traditional (Taiwan): 餘弦 yúxián ㄩˊ ㄒㄧㄢˊ cosine math. Character by character 余(yú)surname Yu 弦(xián)bow string Other words read yúxián yuxian with other tones 预先 遇险 阈限 蔚县 鱼线 All 9 words read yuxian in any tone Words with 余弦 Ending with 余弦 双曲余弦 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0