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两侧同时换到之前的修订记录前一修订版 | |||
zh:reference:language:log [2015/10/09 02:30] – nzhu | reference:language:log [2023/06/07 04:23] (当前版本) – 外部编辑 127.0.0.1 | ||
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+ | ====== log() ====== | ||
+ | |||
+ | ===== 例子 ===== | ||
+ | <code cpp> | ||
+ | double c = log(3); | ||
+ | double d = log(4); | ||
+ | </ | ||
+ | ==== 描述 ==== | ||
+ | log() 计算以自然对数e为底的x的对数 | ||
+ | === 语法 === | ||
+ | |||
+ | log(x) | ||
+ | == 参数 == | ||
+ | |||
+ | x double, float or int | ||
+ | |||
+ | 返回 double | ||