diff options
author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
---|---|---|
committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /math/slalib/random.F__win | |
download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz |
Initial commit
Diffstat (limited to 'math/slalib/random.F__win')
-rw-r--r-- | math/slalib/random.F__win | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/math/slalib/random.F__win b/math/slalib/random.F__win new file mode 100644 index 00000000..9cd77fac --- /dev/null +++ b/math/slalib/random.F__win @@ -0,0 +1,59 @@ + REAL FUNCTION sla_RANDOM (XSEED) +*+ +* - - - - - - - +* R A N D O M +* - - - - - - - +* +* Generate pseudo-random real number in the range 0 <= X < 1. +* +* (single precision) +* +* !!! Microsoft Fortran dependent !!! +* +* Given (but used first time only): +* XSEED real an arbitrary real number +* +* The value returned is a pseudo-random number such that +* 0 <= sla_RANDOM < 1. +* +* Called: RANDOM (Microsoft run-time library) +* +* P.T.Wallace Starlink 7 November 2003 +* +* +* License: +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program (see SLA_CONDITIONS); if not, write to the +* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +* Boston, MA 02110-1301 USA +* +*- + + IMPLICIT NONE + + REAL XSEED + + REAL X + LOGICAL FIRST + SAVE FIRST + DATA FIRST /.TRUE./ + + + IF (FIRST) THEN + CALL SEED(NINT(MOD(XSEED*1.234E7,32E3))) ! Microsoft Fortran + FIRST=.FALSE. + END IF + CALL RANDOM(X) ! Microsoft Fortran + sla_RANDOM=X + + END |