#        r       exact
	0.8	-1.0201
	0.9	-1.0836
	1	-1.1245
	1.1	-1.1501
	1.2	-1.1649
	1.401	-1.1745
	1.6	-1.1686
	1.8	-1.1551
	2	-1.1381
	2.5	-1.0939
	3	-1.0573
	4	-1.0164
	5	-1.0038
	7	-1.0002
	10	-1.0000