Lines Matching full:tau

21 *       SUBROUTINE DLARF( SIDE, M, N, V, INCV, TAU, C, LDC, WORK )
26 *       DOUBLE PRECISION   TAU
41 *>       H = I - tau * v * v**T
43 *> where tau is a real scalar and v is a real vector.
45 *> If tau = 0, then H is taken to be the unit matrix.
76 *>          TAU = 0.
85 *> \param[in] TAU
87 *>          TAU is DOUBLE PRECISION
88 *>          The value tau in the representation of H.
125       SUBROUTINE DLARF( SIDE, M, N, V, INCV, TAU, C, LDC, WORK )  argument
135       DOUBLE PRECISION   TAU  local
164       IF( TAU.NE.ZERO ) THEN
205             CALL DGER( LASTV, LASTC, -TAU, V, INCV, WORK, 1, C, LDC )
220             CALL DGER( LASTC, LASTV, -TAU, WORK, 1, V, INCV, C, LDC )