ln2=0.69314718055994530941723212145818=0.693,
ln3=1.0986122886681096913952452369225=1.099,
ln5=1.6094379124341003746007593332262=1.609,
ln6=1.7917594692280550008124773583807=1.792,
ln7=1.9459101490553133051053527434432=1.946,
√5=2.2360679774997896964091736687313=2.236,
√6=2.4494897427831780981972840747059=2.449,
√7=2.6457513110645905905016157536393=2.646。