PLAPACK FORTRAN-C interface

The FORTRAN call

CALL DSYMV( "L", N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY )

becomes the C call

PLA_dsymv( "L", &n, &alpha, a, &lda, x, &incx, &beta, y, &incy );

Recall that only the first character of the string parameter is checked. Thus "L" is equivalent to "Lower triangular".