double atan2(double y, double x);
Parameter:
x, y: góc (radian)
Remark:
Hàm atan2( ) tính arctan của x/y.
Ví dụ:
#include <math.h> #include "conio.h" #include <stdio.h> void main( void ) { double x = 1.0, y = 4.5; printf( "atan2( %.2f, %.2f ) = %f\n", x, y, atan2(x, y)); getch(); }
Kết quả:
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