MATLAB: Help with Basic Matrix Exercise

basic

Hi 🙂 I'm learning Matlab by myself with some tutorial that i found online. I know, I'm a newbie but i can't solve this exercise. Could someone help me? Should be very easy cause i found this in a starter course.

Create a 6(rows)x4(columns) matrix filled with random integer values between 1 and 20; Create a zeroes matrix of the same dimensions; Replace each zero with a random number from the other matrix; Display each value in the new mixed matrix

Thank you 🙂

Best Answer

To get you started, check

doc rand
doc zeros

Probably this is the easy part. If you get to "Replace each zero with a random number from the other matrix;", you may want to share all the code you have to that time in a new question here with your specific struggle (if any).

Related Solutions

MATLAB: Multiple left-hand sides must be separated by commas

[dx(i); dy(i); dz(i); t0(i)] = inv(Mat1(i))*Mat2(i);

You need to use comma instead of semicolon there.

But it is not going work. You need to assign the result to a variable and then index the variable to pull out parts to assign to those variables.

You are also going to need to start using cell arrays for Mat1 and Mat2

Is there a reason that you are storing the Mat1 and Mat2 results? You do not appear to be using them after the loop.

MATLAB: How to place a number (1) in a random position in Line 1 in a matrix of zeros

Try this:

M = zeros(10, 10);
yourVariable = 1;
column = randi(size(M, 2))
M(1, column) = yourVariable % Stuff the variable into the random column of row 1.

Best Answer

Related Solutions

MATLAB: Multiple left-hand sides must be separated by commas

MATLAB: How to place a number (1) in a random position in Line 1 in a matrix of zeros

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