Hi,
I came across a strange issue in 'knitr' with R code containing complex
numbers entered directly using the "x + yi" notation. For an illustration
see the minimal example: http://goo.gl/Yj77kI

The sample code evaluates correctly, both in R console and as a code chunk
when compiled with Sweave, resulting in:
> 1i^2
[1] -1+0i

However, when trying to use 'knitr' on the same document, the imaginary
unit seems to get lost and what I get is:
1^2
## [1] 1

Any ideas?

Cheers,
Andrzej

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