$x.nude

That enables me to see that 1.111111111111111111111.FatRat and 1.111111111111111111111.Rat have equivalent rational values: 
> my $x = 1.111111111111111111111.Rat; $x.nude
(1111111111111111111111 1000000000000000000000)
> my $y = 1.111111111111111111111.FatRat; $y.nude
(1111111111111111111111 1000000000000000000000)

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and that $x (the Rat) gets handled in a way that I don't really expect: 
> my $r1 = $x * 0.3
0.333333333333333
> $r1 = $x * 0.3.Rat
0.333333333333333
> $r1 = $x * 0.3.Num
0.333333333333333
> $r1 = $x * 3e-1
0.333333333333333
> $r1 = $x * 0.3.FatRat
0.3333333333333333333333

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though the last result is as I expected.
Compare those outputs with: 
> my $r2 = $y * 0.3
0.3333333333333333333333
> my $r2 = $y * 0.3.Rat
0.3333333333333333333333
> my $r2 = $y * 0.3.Num
0.333333333333333
> my $r2 = $y * 3e-1
0.333333333333333
> my $r2 = $y * 0.3.FatRat
0.3333333333333333333333

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which is more in keeping with my expectations.

I'm sure it all makes sense if you know how to look at it from the appropriate angle.

Cheers,
Rob

In reply to Re^5: Small Perl 6 discoveries II, Rats by syphilis
in thread [Perl6] Small discoveries I, __DATA__ by holli

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