printing of complex numbers in R-alpha
On Thu, 21 Sep 2006, Martin Maechler wrote:
"Robin" == Robin Hankin <r.hankin at noc.soton.ac.uk>
on Thu, 21 Sep 2006 08:05:24 +0100 writes:
Robin> Hello everyone Robin> I am finding complex numbers to be printed oddly in R-alpha.
>> 1e100+1e100i
Robin> [1] 1e+100+1e+100i
>> 1e100 + 1e44i
Robin> [1] 1e+100+100000000000000008821361405306422640701865984i
>> dput(1e100+1e44i)
Robin> 1e+100+100000000000000008821361405306422640701865984i
>>
ouch, ouch! Robin> [same thing at home on a linux box] Robin> The first line is what I would expect, the second and third lines Robin> aren't: Robin> I would prefer "1e100+1e44i". Is this possible for R-2.4.0? It should.
I think the right answer is 1e100+0i: read what 'digits' means for complex numbers. It's been there since 2.2.0.
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595