GKK mokai
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mokai
/ gist:89a1293c8372bceaa104
Created
December 21, 2015 01:40
— forked from ethanbing/gist:10970615
iOS 常用数学函数
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| 1、 三角函数 | |
| double sin (double);正弦 | |
| double cos (double);余弦 | |
| double tan (double);正切 | |
| 2 、反三角函数 | |
| double asin (double); 结果介于[-PI/2, PI/2] | |
| double acos (double); 结果介于[0, PI] | |
| double atan (double); 反正切(主值), 结果介于[-PI/2, PI/2] | |
| double atan2 (double, double); 反正切(整圆值), 结果介于[-PI, PI] | |
| 3 、双曲三角函数 |