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## Homework Statement

I need to create a 121*121 matrix in matlab. Forty of the rows have to contain the sequence 0 1 0 0 1 -4 1 0 0 1. and the rest of the rows will have 0's and "one 1" per row. The sequence has to be pushed one step to the right from row 1 to 121, the result should be a matrix with only -4's and 1's on the diaogonal.

The first 12 rows will have the form:

1 0 0 0 0 0 0 0 0 0 0........

0 1 0 0 0 0 0 0 0 0 0.......

0 0 1 0 0 0 0 0 0 0 0........

Then the rows with the -4's appear 9 times being separated by only two rows of type 1 and 0.

example:

1 0 0 0 0 0 0 0 0 0 0........

0 1 0 0 0 0 0 0 0 0 0.......

0 0 1 0 0 0 0 0 0 0 0........

11 rows

then

9 rows of

0 1 0 0 1 -4 1 0 0 1 0 0 0 0 0 0 0 0 0........

0 0 1 0 0 1 -4 1 0 0 1 0 0 0 0 0 0 0 ......

0 0 0 1 0 0 1 -4 1 0 0 1 0 0 0 ......

after the 9 rows then two of only 1 and 0 again. and it continues like that for 110 rows down, with the remaining being like the twelve first with only 1 and zeros.

phew! Hope this is possible to understand. I have very little experience with programing, so I find this really hard.

## Homework Equations

please ask for expanation if you don't understand.

## The Attempt at a Solution

Mons