这个画图程序哪里错了，看不出问题，求指教。

u=[1.121053,1.052632,1.000000,0.947368,0.905263,0.852632,0.800000,0.747368,0.705263,0.652632,0.600000,0.547368,0.526316,0.505263];

p=[0.484515,0.428333,0.412780,0.403545,0.400569,0.386055,0.386709,0.380415,0.375948,0.373822,0.374814,0.367592,0.366922,0.371988];

q=[0.922466,0.736968,0.630898,0.531095,0.465205,0.404971,0.335861,0.285312,0.252639,0.216848,0.181531,0.167480,0.161788,0.157905];

c1=polyfit(u,p,2);

x1=0:0.02:1.4;

y1=polyval(c1,x1);

z1=0.407*(x1.^0.074);

w1=0.4*(x1.^2)-0.5*x1+0.53;

plot(x1,y1,'r-o',u,p,'g-.p')

axis([0.5 1.1 0.3 0.5]);

xlabel('U(电压)');ylabel('P(有功功率)');

c2=polyfit(u,q,2);

x2=0:0.02:1.4;

y2=polyval(c2,x2,5);

z2=0.58*(x1.^1.39);

w2=2*x2.^2-2*x2+0.67;

figure(2)

plot(x2,y2,'r-o',u,q,'g-.p');

axis([0.5 1.1 0 0.9]);

xlabel('U（电压)');ylabel('Q(无功功率)');

Answer 1

[biyac]

这个程序的命名有问题，m文件首先不要和内部函数名重复，然后开头要用英文字母，不能有空格，可以有下划线