C语言中arctan()函数的使用示例有哪些

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筋斗云
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  1. 计算角度的反正切值:
#include <stdio.h> #include <math.h>  int main() {     double angle = 45.0;     double result = atan(angle * M_PI / 180); // 将角度转换为弧度     printf("The arctan of %f is %f radians\n", angle, result);     return 0; } 
  1. 计算直角三角形的角度值:
#include <stdio.h> #include <math.h>  int main() {     double adjacent = 3.0;     double opposite = 4.0;     double angle = atan(opposite / adjacent) * 180 / M_PI; // 计算反正切值并将弧度转换为角度     printf("The angle of the right triangle is %f degrees\n", angle);     return 0; } 
  1. 计算两点之间的夹角:
#include <stdio.h> #include <math.h>  int main() {     double x1 = 1.0, y1 = 1.0;     double x2 = 2.0, y2 = 2.0;          double angle = atan((y2 - y1) / (x2 - x1)) * 180 / M_PI; // 计算两点之间的夹角     printf("The angle between the two points is %f degrees\n", angle);     return 0; } 

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