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 [[alternative HTML version deleted]]

Those interested in this issue will find a follow up on stackoverflow: http://stackoverflow.com/questions/18876204/imaginary-units-of- complex-numbers-dropped-by-knitr Briefly, the observed behaviour is related to an upstream bug in getParseData(), which should be fixed in the first R-patched following the release of R-3.0.2, as announced by Duncan Murdoch. Cheers, Andrzej On Wed, Sep 18, 2013 at 12:41 PM, Andrzej Ole¶ <andrzej.oles@gmail.com>wrote: > 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 > [[alternative HTML version deleted]]