Question

How to compare multidimensional arrays? Just true/false.

    double[,] data1 = new double[,] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };    
    double[,] data2 = new double[,] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };
    
    //bool compare = data1.SequenceEqual(data2);

Is there way to compare 2d arrays like 1d array ?

    data1.SequenceEqual(data2);     

I have to compare every second, so easiest way will be great. Thanks a lot.

Answer 1

A multidimensional array can be used in linq as one dimensional enumerable. You just need to check also for the length of all dimensions. This snippet should be enough:

    var equal =
        data1.Rank == data2.Rank &&
        Enumerable.Range(0,data1.Rank).All(dimension => data1.GetLength(dimension) == data2.GetLength(dimension)) &&
        data1.Cast<double>().SequenceEqual(data2.Cast<double>());