Alexandrs-MacBook-Pro:dice ascrazy$ ./main.rb calc 100 300
Calculate N = 100, M = 300
Result(Rational) = 207241756759032546720209656767808329086730171654102671945216674007548108775/653318623500070906096690267158057820537143710472954871543071966369497141477376
Result(Float) = 0.0003172139126369326
Measurement =   0.010000   0.010000   0.020000 (  0.008800)

Alexandrs-MacBook-Pro:dice ascrazy$ ./main.rb calc 300 800
Calculate N = 300, M = 800
Result(Rational) = 6745910765218795188463014372216123759236352748437173855511072000531482865548306209022919481687666791189067739809135748798071959323734053440799721093876229055280075116211424862050368361228244540552383197905683012461/3872956495777547621438220828141260296448888991758010511241572090492766204267657873649927274624696862165211817349916482694236345884515655633169250559127628171545704079279640522401566861809494197777854826916860701422869594477751697408
Result(Float) = 1.741798745370225e-18
Measurement =   0.120000   0.010000   0.130000 (  0.134559)