%繪制例題6.2.1的散點圖
%給出向量x和y，利用下面的程序代碼可以繪制散點圖

x=[255.7,263.3,275.4,278.3,296.7,309.3,315.8,318.8,330.0,340.2,350.7,367.3,381.3,406.5,430.8,451.5];
y=[116.5,120.8,124.4,125.5,131.7,136.2,138.7,140.2,146.8,149.6,153.0,158.2,163.2,170.5,178.2,185.9];

%以下為函數調用計算部分，不可改動
hgxt(x,y)