#include <math.h>
#include <stdio.h>
double kansuu (double x,double r){
    return x*x+((x*x)*tan(x)*tan(x))-r;
}
double kansuubibun (double x){
return 2*x+2*x*(cos(x)*sin(x)*sin(x))+2*x*x*sin(x)/(cos(x)*cos(x)*cos(x)); }
int main(void){
      int i,step;
double x,r,init; printf("初期値を入力してください¥n");
scanf("%lf",&init); printf("何ステップ計算するか入力しなさい");
scanf("%d",&step); printf("平方根を求めたい数を入力しなさい");
                   scanf("%lf",&r);
            x=init;
for (i=0;i<=step;i=i+1){ x=x-kansuu(x,r)/kansuubibun(x);
printf("%0.20lf¥n",x);} return(0);
}

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MQoxMAoxCg==

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