- 211 名前：デフォルトの名無しさん mailto:sage [2008/08/14(木) 18:13:40 ]
- スレ誘導されてきました
#include <iostream>
using namespace std;
//2直線の交点を求める関数
double lineIntersect(double *L1Point, double L1Slope, double *L2Point, double L2Slope);
int main()
{
double P1[2] = {4, 10};
double P2[2] = {6, 18};
double S1 = 2/3;
double S2 = 1/3;
double ans[2] = {0, 0};
*ans = lineIntersect(P1, S1, P2, S2);
cout << "交点の座標は" << ans[0] << '/' << ans[1] << "です\n";
return 0;
}
double lineIntersect(double *L1Point, double L1Slope, double *L2Point, double L2Slope) {
double ans[2] = {0, 0};
ans[0] = (L1Slope * L1Point[0] - L2Slope * L2Point[0] + L2Point[1] - L1Point[1]) / (L2Slope - L1Slope);
ans[1] = L1Slope * (ans[0] - L1Point[0]) + L1Point[1];
return ans;
}
30分位調べたり考えたりしたのですが1つだけエラーが解決しません；；
cpp(29) : error C2440: 'return' : 'double [2]' から 'double' に変換できません。
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