什么是语法错误“错误：不平衡或意外的括号或括号”？

Question

下面的代码产生错误

n=4; 
p=3; 
x =-(pi./2); 
y=-(pi./2); 
z=-(pi./2); 

%Now, define the matrix v_k 
v_k = [sin(x).*sin(y).*sin(z), ... 
    1-(1-cos(x))(sin(y).^2.*sin(z).^2), ... 
    -(1-cos(x))(sin(y).^2.*sin(z).*cos(z)), ... 
    -(1-cos(x))(sin(y).*sin(z).*cos(y)); ... 
    sin(x).*sin(y).*cos(z), ... 
    -(1-cos(x))(sin(y).^2.*sin(z).*cos(z)), ... 
    1-(1-cos(x))(sin(y).^2.*cos(z).^2), ... 
    -(1-cos(x))(sin(y).*cos(y).*cos(z)); ... 
    sin(x).*cos(y), ... 
    -(1-cos(x))(sin(y).*sin(z).*cos(y)), ... 
    -(1-cos(x))(sin(y).*cos(y).*cos(z)), ... 
    1-(1-cos(x))(cos(y).^2); ... 
    cos(x), ... 
    -sin(x).*sin((y).*sin(z),... 
    -sin(x).*sin(y).*cos(z),... 
    -sin(x).*cos(y)]; 

所示的错误是：

Error: File: test.m Line: 9 Column: 17 Unbalanced or unexpected parenthesis or bracket. 

或可替代地，如果从命令窗口运行

v_k = [sin(x).*sin(y).*sin(z), ... 
    1-(1-cos(x))(sin(y).^2.*sin(z).^2)] 
    1-(1-cos(x))(sin(y).^2.*sin(z).^2)] 
       ↑ 
Error: Unbalanced or unexpected parenthesis or bracket. 

Answer 1

看起来你缺少闭合括号内，至少在第二行到最后一行，您有.*sin((y).*sin(z),并且缺少*（或另一个操作r）在几行中你的)(之间。在MATLAB (A)(B)不是A*B。