L5a : Univariate

G01PTF	Landau first moment function $Φ_{1} (x)$
G01QTF	Landau second moment function $Φ_{2} (x)$

L5a1:	Cumulative distribution functions, probability density functions	(46 routines)
L5a2:	Inverse distribution functions, sparsity functions	(16 routines)