Ŀ

գҪıйص䡣
һ repeat (0<repeat<10) repeat 㣺
뾫 e  xйʽcos(x)ĽֵȷһľֵСe
cos(x) = x^0/0!x^2/2!x^4/4!x^6/6!
Ҫ岢ú funcos(e,x) cos(x) ֵβex;Ϊdoubledouble
ʾ˵
룺
2    		(repeat=2)
0.001  0  	(e=0.001, x=0)
0.0001 -3.14	(e=0.0001, x=-3.14)

sum = 1.000000
sum = -0.999999



#include "stdio.h"
#include "math.h"
double funcos(double e, double x);
int main(void)
{
    int repeat, ri;
    double e, sum, x; 

    scanf("%d", &repeat);
    for(ri = 1; ri <= repeat; ri++){
        scanf("%le%le", &e, &x);
/*---------*/
        printf("sum = %f\n", sum);
    }
}

/*---------*/

