我需要使用以下代码行乘以一些值：
% Apply hypothetical keys
tmp = bitxor( Y_i*ones(1,length(K)) , ones(length(Y_i),1)*K );
我发现的错误是：
error: binary operator `*' not implemented for `int32 matrix' by `matrix' operations
error: evaluating binary operator `*' near line 49, column 17
error: evaluating argument list element number 1
error: evaluating assignment expression near line 49, column 7