I have read something about single dimensional array and multi dimensional array - 2 dimensional array to be specific. I understood the concept and how to use those feature in C/C++. The 3 and 4 dimensional arrays are mentioned in the book but they did not provide complete information about those 2 type of multi dimensional array. Somebody told me that those 2 types of multidimensional array are not widely used now, but failed to provide any fact that could substantiate what he stated about multidimensional array. I'm curious on how to use 3 and 4 dimensional arrays and how they work. Is there any good tutorials that you could provide to learn this? I've searched over the internet but they mostly provide 2 dimensional array. Are 3 and 4 dimensional arrays not widely used now?