* function ilaenv
* function isamax
* function lsame
* subroutine saxpy
* subroutine scopy
* subroutine sdot
* subroutine sgebak
* subroutine sgebal
* subroutine sgeev
* subroutine sgehd2
* subroutine sgehrd
* subroutine sgemm  <- level-3 blas routines
* subroutine sgemv
* subroutine sger
* subroutine shseqr
* subroutine slabad
* subroutine slacpy
* subroutine sladiv
* subroutine slahqr
* subroutine slahrd
* subroutine slaln2
* subroutine slamch
* subroutine slamc1
* subroutine slamc2
* subroutine slamc3
* subroutine slamc4
* subroutine slamc5
* subroutine slange
* function slanhs
* subroutine slanv2
* function slapy2
* subroutine slarf
* subroutine slarfb
* subroutine slarfg
* subroutine slarft
* subroutine slarfx
* subroutine slartg
* subroutine slascl
* subroutine slaset
* subroutine slassq
* function snrm2
* subroutine sorg2r
* subroutine sorghr
* subroutine sorgqr
* subroutine srot
* subroutine sscal
* subroutine sswap
* subroutine strevc
* subroutine strmm
* subroutine strmv
* subroutine xerbla
