x, sin(x));printf ("SQRT(%g)=%f \n", x, SQRT(x,eps2));printf ("sqrt(%g)=%f \n", x, sqrt(x));return 0;}double SIN (double x, double eps) {double sum = 0;int sign = 1; /* 控制正负符号，初值为正 */double f = 1; /* f = (2n+1)!，初值为1 */doub...