Inserting Output of Equations into Matrix

Question

Andrew Rowe 2019-12-11

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编辑： Andrew Rowe 2019-12-12

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

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Answer 1

Walter Roberson 2019-12-12

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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 .