Blockquotefunction f = factor_31b2(PA,rou_0,v,f,M,N)

```
for n=1:1:N
r=(rou_0^2)*M^2*PA(1,n);
f(1,n)=r*inv_pos(v(1,n));%(第1行的第n列)
end
```

end

提示错误Disciplined convex programming error:

Cannot perform the operation: {real affine} .* {convex}

提示f(1,n)这一行不太符合规则