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Matlab-Matrix – Create a Matrix ”; Previous Next In MATLAB, you can create a matrix by entering the elements in each row as comma. You can also create a matrix with space delimited numbers and by using the semicolons to mark the end of each row. Matrix with single row Let us create a simple matrix in MATLAB that has a single row and three elements. Each element should have a space or comma. Example Consider the below mentioned elements to create a matrix. m=[2, 4, 6] Output On execution in MATLAB it will display the following − >>m = [2, 4, 6] m = 2 4 6 >> When you execute the code in MATLAB, the result of the matrix is displayed in the command window. Matrix with Multiple rows Example Let us now create a matrix with multiple rows. To do that, we need to separate each row with semicolon (;) as shown below − m = [2 4 6; 3 6 9; 4 8 12] Output Here 2 4 6 is the first row, 3 6 9 is the second row and 4 8 12 is the third row. The matrix will be as follows − m = 2 4 6 3 6 9 4 8 12 Let us now execute the same in MATLAB command prompt, as mentioned below − >> m = [2 4 6; 3 6 9; 4 8 12] m = 2 4 6 3 6 9 4 8 12 >> The 3×3 matrix is displayed as shown above in MATLAB. Besides creating matrix with the values of your choice you can also make use of the built-in MATLAB functions zeros, rand or ones to create a matrix as shown below − The zerosfunctions This will create matrix with all zeros with the given row/column size. Example You can use MATLAB zeros function as follows − m0 = zeros(3,3) Output You will get the following output − >> m0 = zeros(3,3) m0 = 0 0 0 0 0 0 0 0 0 >> The onesfunction The matrix created will have ones as the values. Example You can use MATLAB ones function as follows − m1 = ones(3,3) Output You will get the following output − >> m1 = ones(3,3) m1 = 1 1 1 1 1 1 1 1 1 >> The rand() function The function rand() allows you to create a matrix with random elements for the size given. Here is an example for the same. Example m1 = rand(3,3) Output Let us now execute the same in MATLAB to see the results. The output is as follows − >> m1 = rand(3,3) m1 = 0.8147 0.9134 0.2785 0.9058 0.6324 0.5469 0.1270 0.0975 0.9575 >> Print Page Previous Next Advertisements ”;