Level 1 BLAS: vector ops

Modules
	asum: sum | real( x_i ) | + | imag( x_i ) |
	sum1: sum | x_i | (in LAPACK)
	axpy: y = ax + y
	copy: y = x
	dot: x^H x and x^T x
	iamax: argmax_i | real( x_i ) | + | imag( x_i ) |
	imax1: argmax_i | x_i | (in LAPACK)
	nrm2: || x ||_2
	scal: x = alpha x
	swap: x <=> y
	— Givens/Jacobi plane rotations —
	rot: apply plane rotation ([cz]rot in LAPACK)
	rotg: generate plane rotation (cf. lartg)
	rotm: apply modified (fast) plane rotation
	rotmg: generate modified (fast) plane rotation

Detailed Description