# MATLAB trouble with reshape and random matricies

1. Jun 16, 2013

### JonDrew

I am trying to learn MATLAB with MIT OCW and I am running into some trouble.

It says as an assignment:

c. cMat = a 10x10 matrix where the vector 1:100 runs down the columns (use reshape).

so

1 11 21.....91
2.............92
. ..............
10...........100

is the matrix I am trying to make and another exercise says

f. Make fMat be a 5x3 matrix of random integers with values on the range -3 to 3 (use rand and floor or ceil)

I am not sure how it wants me to go about these, thanks for any help. The course link is listed below.

http://ocw.mit.edu/courses/electric...oduction-to-matlab-january-iap-2010/index.htm

2. Jun 18, 2013

### MisterX

3. Jun 21, 2013

### JonDrew

Figured it out. It took me a while though, sadly.

for c. I used

cMat= linspace(1, 100)
cMat= reshape(cMat,10, 10)

and d. I used

fMat= ceil(rand(5,3)*10);
mod(fMat, 4)

And I really appreciate the help I am learning it through the MIT slides alone, I find I get hung up on little things like this.