Would anybody have a version of this in EQN. I do not mean the simple 2x2
matrix but the generic nxn square matrix
G(i, j, theta)
which is, when i > j,
G sub kk = 1 ... k != i, j
G sub ii = G sub jj = cos(theta)
G sub ji = - G sub ij = - sin(theta)
See:
https://en.wikipedia.org/wiki/Givens_rotation
Thanks heaps - Damian
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