Inserting Output of Equations into Matrix

I'm looking to evaluate several equations and put the output of these equations into a matrix to eventually solve this matrix.

The matrix I'm looking to output is as follows:

| -2 1+B 0 | * | theta 1 | = | 0 |

| 1-B -2 1+B | | theta 2 | | 0 |

| 0 1-B -2 | | theta 3 | | 0 |

With B being .35*n

n is first evaluated at 2

This matrix needs to be able to adjust in size and n changes

Answer 1

[Walter Roberson]

Since n appears to be an input, you appear to be trying to solve three simultaneous equations for the single value, theta. Because your right hand side is all 0, you are looking for the null space of the matrix. However, the matrix is full rank except when n is +/- 20/7 * sqrt(-1) so there is no null space, and the only solution is theta = 0 .

[Andrew Rowe]

My mistake, the theta values will be different. The x matrix (Ax=B) will be theta1, theta2, theta3, and so on.

(Fixed)