General matrix: LU

Modules
	gesv: LU factor and solve
	CGESV computes the solution to system of linear equations A * X = B for GE matrices (simple driver)
	gesvx: LU factor and solve, expert
	gesvxx: LU factor and solve, extra precise
	gesv: LU factor and solve, mixed precision
	--- banded ---
	gbsv: LU factor and solve
	gbsvx: LU factor and solve, expert
	gbsvxx: LU factor and solve, extra precise
	--- tridiagonal ---
	gtsv: LU factor and solve
	gtsvx: LU factor and solve, expert

Detailed Description