Cosine of angle a: left parenthesis, negative 1 , 1.1 , right parenthesis−1,1.1
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13
隐藏 标签 left parenthesis, "c" , 0 , right parenthesisc,0
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equals=
left parenthesis, 0.6 9 3 , 0 , right parenthesis0.693,0
14
表达式15: "a" Subscript, "r" , Baseline equals StartFraction, floor left parenthesis, "a" times 1000 , right parenthesis Over 1000 , EndFractionar=floora·10001000
