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You will first need to fix your example. Here is what I get when I tried your syntax:
> my Rat @example = 1 , * ** 0.9999 ... Inf; [...] > @example[^4] Type check failed in assignment to @example; expected Rat but got Int in block <unit> at <unknown file>:1
So the initial assignment is failing because "1" is not a Rat. That piece can be fixed, and re-tried:

> my Rat @example = 1.0, * ** 0.9999 ... Inf; [...] > @example[^4] Type check failed in assignment to @example; expected Rat but got Num in block <unit> at <unknown file>:1 > @example[0] 1
A little further that time .. We successfully assigned "1" to @example[0], but that is all. The next element is a "Num", not a Rat, so the assignment failed.

Another problem with the sequence is that it is not increasing to Infinity. Not sure what the intent is here.

If you use an increasing Rat sequence, it works:

> my Rat @example = 1.0, * += 0.9999 ... Inf; [...] > @example[^4] (1 1.9999 2.9998 3.9997)

                All power corrupts, but we need electricity.

In reply to Re: perl6 rational number problem by NetWallah
in thread perl6 rational number problem by freakcoco

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