double[][] data_array
SimpleMatrix dataMatrix = new SimpleMatrix(data_array);
SimpleMatrix omegaMatrix = new SimpleMatrix(omega);
SimpleMatrix cMatrix = dataMatrix.mult(omegaMatrix);
System.out.println("Multiplied");
cMatrix.print();
我正在使用 EJML
库进行矩阵运算。
1.How to convert a simple matrix back to double[][].
以上结果是一个1行1列的矩阵。
2. Can we store this value in a double variable?
double value = array[i];
,那么你应该阅读 http://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html。 - Marco13