dasum daxpy dcopy ddot dnrm2 drot drotg drotm drotmg dscal dswap

dasum() double dasum ( int  n, double  x[], int  incx  ) |x| (1-norm) (BLAS 1) Purpose This routine takes the sum of the absolute values of a vector (1-norm). Returns Sum of the absolute values of elements of the vector x (1-norm). Parameters [in] n Number of elements in input vector x. (If n <= 0, dasum returns 0) [in] x[] Array x[lx] (lx >= 1 + (n - 1)*incx) Input vector x. [in] incx Storage spacing between elements of vector x. (If incx <= 0, dasum returns 0) Reference BLAS