Time for action - interacting with the user

1. 1. Open a new file and write the following commands in the editor:

   Code Listing 4.2
   nr = input("Enter the number of rows in the matrix: "); #1
   nc = input("Enter the number of columns in the matrix: "); #2
   #3
   A = rand(nr,nc); #4
   #5
   minA = min(min(A)); #6
   #7
   disp("The minimum of A is"); #8
   disp(minA); #9
   

2. Save it as script42.m.

1. 2. Executing Code Listing 4.2, we get:

octave:10>script42
Enter the number of rows in the matrix: 12
Enter the number of columns in the matrix: 20
The minimum of A is
0.00511

What just happened?

Code Listing 4.2 allows the user to specify the size of the array (lines 1 and 2). Just like Code Listing 4.1, the script then finds the minimum of the array. The result is printed using the disp function.

Flush please

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