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planerot - Givens plane rotation

Syntax

[G,y] = planerot(x)

Description

[G,y] = planerot(x) where x is a 2-component column vector, returns a 2-by-2 orthogonal matrix G so that y = G*x has y(2) = 0.

Examples

x = [3 4];
[G,y] = planerot(x')

G  =
    0.6000    0.8000
   -0.8000    0.6000

y =
     5
     0

See Also

qrdelete, qrinsert

pinv

playshow

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