For example, float x[3][4]; Here, x is a two-dimensional (2d) array. For example, if you want to store 100 integers, you can create an array for it. You can pass multi-dimensional arrays to functions just like a 1-D array, but you need to specify the size of the all other dimensions except the first one. 1-D arrays or one-dimensional array; 2-D arrays or two-dimensional arrays; and so on… In this tutorial, we will learn more about the 2D array. In this tutorial we will learn to work with two dimensional arrays using pointers in C programming language. An m × n (read as m by n) order matrix is a set of numbers arranged in m rows and n columns. Let’s take an example, Suppose int aiData[3][3] is a 2D array that has 3 rows and 3 columns. C program to swap two arrays using pointer. The array of characters is called a string. In the previous tutorial Pointers and One Dimensional Array we learned to work with one dimensional character array. 2D Array is considered to be one of the simplest form under the multidimensional array. The returning variable's address is no longer valid because on pixels() return, the stack allocated variable goes out of scope. In C programming, you can create an array of arrays. The Two Dimensional Array in C language is nothing but an Array of Arrays. In C language, the compiler calculates offset to access the element of the array. Feel free to checkout that tutorial. If the data is linear, we can use the One Dimensional Array. An array is a variable that can store multiple values. A one dimensional array can be easily passed as a pointer, but syntax for passing a 2D array to a function can be difficult to remember. A two-dimensional array is, in essence, a list of one-dimensional arrays. One important thing for passing multidimensional arrays is, first array dimension does not have to be specified. The calculation of the offset depends on the array dimensions. These arrays are known as multidimensional arrays. Access a 2d array using a single pointer. Similarly, the array of Strings is nothing but a two-dimensional (2D) array of characters. The array can hold 12 elements. To declare an array of Strings in C, we must use the char data type. In this topic, we are going to learn about 2D Arrays in C++. To store the entire list we use a 2d array of strings in C language. We already know that arrays are a collection of the same type of data that have a fixed size(in C programming language as in other languages we can increase the size of an array at runtime). Two-dimensional Arrays : : The simplest form of multidimensional array is the two-dimensional array. In this tutorial, you will learn to work with arrays. The reasons for this are twofold: the main problem is that arrays are not pointers and the second inconvenience is the so called pointer decay. C Arrays. C program to reverse an array using pointers. You can think the array as a table with 3 rows and each row has 4 columns. For e.g: If you need to pass arr[2][3] to a function called func_1(), then you need to declare the func_1() like this: 1 2 3 4. C program to sort array using pointers. You can consider the 2D array to be an array of a 1D array so as to comprehend it easily. C program to copy one array to another using pointers. This post is an extension of How to dynamically allocate a 2D array in C? “Hi”, “Hello”, and e.t.c are the examples of String. However, to work with multi-level data, we have to use the Multi-Dimensional Array. You will learn to declare, initialize and access elements of an array with the help of examples. C program to search an element in array using pointers. 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