在普通JavaScript中用平方距离函数识别中心

d = (x1 - x2)^2 + (y1 - y2)^2

function findCenter(points) {
  let minDistanceSum = Infinity;
  let centerIndex = -1;

  for (let i = 0; i < points.length; i++) {
    let distanceSum = 0;

    for (let j = 0; j < points.length; j++) {
      if (i !== j) {
        const x1 = points[i][0];
        const y1 = points[i][1];
        const x2 = points[j][0];
        const y2 = points[j][1];

        const distance = Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2);
        distanceSum += distance;
      }
    }

    if (distanceSum < minDistanceSum) {
      minDistanceSum = distanceSum;
      centerIndex = i;
    }
  }

  return points[centerIndex];
}

// 示例用法
const points = [[1, 2], [3, 4], [5, 6], [7, 8]];
const center = findCenter(points);
console.log("中心点坐标：", center);