How to display a single element from a matrix?

Hi, I was wondering how I would be able to display a singular element from a given matrix. If I were to have a random integer matrix

x = randi (20,20)

x = 20×20

11 6 2 1 3 12 17 11 4 4 5 15 2 9 4 1 6 18 18 8 5 18 11 17 12 10 7 20 15 5 17 10 10 1 5 4 10 1 15 1 16 13 7 19 20 6 1 20 20 13 11 15 1 8 10 13 1 17 7 3 3 6 9 15 18 4 18 9 3 8 15 9 11 17 8 2 9 10 19 2 4 7 8 6 10 17 5 9 18 16 11 7 8 8 1 18 14 8 5 17 5 10 11 10 16 4 15 13 16 13 8 20 10 3 9 18 1 20 13 5 6 6 8 18 15 7 2 1 8 20 4 4 6 10 19 1 7 20 6 2 15 8 6 7 9 17 20 20 17 2 3 14 13 18 17 8 20 9 2 15 11 1 3 18 1 20 14 9 20 6 13 13 16 10 6 7 4 2 11 15 11 9 5 16 5 6 4 8 9 12 18 5 16 20 18 12 7 19 15 17

how would I go about selecting or highlighting the given value from a random row/column combination (say I want to know what vlaue is at [5, 7])? Thanks in advance for the advice.

[Stephen23]

x = randi(20,20,20)

x = 20×20

8 16 8 7 20 10 2 1 20 4 1 18 7 20 11 12 10 3 9 14 6 11 20 10 13 15 6 3 16 11 6 11 5 20 11 17 18 7 17 1 12 7 5 16 16 12 16 14 4 13 3 14 13 18 9 4 9 1 1 18 8 6 18 5 9 17 10 4 3 1 5 4 12 7 20 20 9 14 20 2 12 14 5 14 9 15 15 16 18 12 1 14 7 1 5 4 8 7 15 9 19 2 5 5 1 7 10 10 17 19 4 14 19 1 8 9 15 1 16 13 6 9 16 16 4 11 5 14 2 8 15 19 3 5 12 5 9 10 7 7 8 15 13 13 3 10 2 5 16 1 3 14 20 1 4 13 16 6 1 5 10 17 12 13 18 13 20 13 11 17 14 16 2 15 8 10 9 17 14 6 14 3 1 18 17 11 19 13 7 17 3 15 5 10 2 2 18 18 16 15

x(5,7)

ans = 15

https://www.mathworks.com/help/matlab/learn_matlab/array-indexing.html

Answer 1

[Jan]

Indexing is a fundamental Matlab method. To learn the basics asking in the forum is less efficient than using the tutorials:

• Getting Started chapters of the documentation
• https://www.mathworks.com/learn/tutorials/matlab-onramp.html