单词	arc cosine
释义	arc cosine noun (ˌ)är(k)-ˈkō-ˌsīn  variants or arccosine plural arc cosines or arccosines : the inverse function of the cosine if y is the cosine of θ, then θ is the arccosine of y —abbreviation arccos Word History First Known Use circa 1884, in the meaning defined above
随便看	outflowed outflowing outflowings outflown outflows outflung outflushed outflushes outflushing outflux outfly outflying outfooled outfooling outfools outfoot outfooted outfooting outfoots outfought outfound outfox outfoxed outfoxes outfoxing

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