package main import "fmt" func main() { // Defining a 2d Array to represent a matrix like // 1 2 3 So with 2 lines and 3 columns; // 4 5 6 multiDimArray := [2] /*lines*/ [3] /*columns*/ int{[3]int{1, 2, 3}, [3]int{4, 5, 6}} // That can be simplified like this: var simplified = [2][3]int{{1, 2, 3}, {4, 5, 6}} // What does it looks like ? fmt.Println(multiDimArray) // > [[1 2 3] [4 5 6]] fmt.Println(multiDimArray[0]) // > [1 2 3] (first line of the array) fmt.Println(multiDimArray[0][1]) // > 2 (cell of line 0 (the first one), column 1 (the 2nd one)) // silence compiler error about unused variable _ = simplified }