Generate Householder transform | F_SGEN_HOUSE/F_DGEN_HOUSE/F_CGEN_HOUSE/F_ZGEN_HOUSE | |
| X | REAL or COMPLEX array, minimum length |
|
| (N - 1) x incx + 1). |
| INCX | Increment for the array x. A vector x having component |
|
| xi, i = 1,..., n, is stored in an array X() with increment |
|
| argument incx. If incx > 0 then xi is stored in |
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| X (1 + (i - 1) x incx). If incx < 0 then xi is stored in |
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| X (1 + (N - i) x incx). incx = 0 is an illegal value. |
Output | TAU | REAL or COMPLEX scalar. If n = 0, F_xGEN_HOUSE |
|
| returns immediately with TAU set to zero. |
Chapter 2 Basic Vector Operations 177