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c -- called from R's  svd(x, ..., LINPACK = TRUE)  , i.e, *NOT* by default --
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c
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c
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c     dsvdc is a subroutine to reduce a double precision nxp matrix x
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c     dsvdc is a subroutine to reduce a double precision nxp matrix x
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c     by orthogonal transformations u and v to diagonal form.  the
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c     by orthogonal transformations u and v to diagonal form.  the
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c     diagonal elements s(i) are the singular values of x.  the
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c     diagonal elements s(i) are the singular values of x.  the
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c     columns of u are the corresponding left singular vectors,
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c     columns of u are the corresponding left singular vectors,