LAPACK  3.6.0
LAPACK: Linear Algebra PACKage
void cblas_ssyr2 ( const CBLAS_LAYOUT  layout,
const CBLAS_UPLO  Uplo,
const int  N,
const float  alpha,
const float *  X,
const int  incX,
const float *  Y,
const int  incY,
float *  A,
const int  lda 
)