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我是 MATLAB 新手,难以理解以下代码行:
ef = sum(X.*(A*X), 1)';
.乘法运算符前面的点 ( ) 和'右括号后面的撇号 ( )的语义是什么?
.
'
转置的'方法:A'与transpose(A)
A'
transpose(A)
并且.*是逐元素乘法。(*是矩阵乘法)
.*
*