MATLAB: Third index in three dimention array3dindexkindly explain me about the following lineVt = zeros(img_h, img_w, 4);i know the following line if(img_h=2, img_w=3)zeros (img_h, img_w)=[0 0 0; 0 0 0]but i cant clearly understand the third dimention Best AnswerYou matrices can be 1D, 2D, 3D or nD...where D stands for dimensional. A = zeros(2,2,2) ; The above A has 2 matrices of size 2X2 having zeros. B = ones(3,4,5) ; The above matrix has 5 matrices each os size 3*4. I = imread("cameraman.tif") ; size(I)Check the size of I above. So nD matrices are possible, in your case third dimension stands for that.