Implicit type conversion: Difference between revisions
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→{{header|Perl 6}}: update to ease automated testing
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(A normal Rat number has a denominator that is limited to 64 bits, with underflow to floating point to prevent performance degradation; a FatRat, in contrast, has an unlimited denominator size, and can chew up all your memory if you're not careful.)
<lang perl6>
$x = (-1).sqrt; say $x, ' ', $x.WHAT; # NaN (Num)
$x = (-1).Complex.sqrt; say $x, ' ', $x.WHAT; # 6.12323399573677e-17+1i (Complex)
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