[R] Inf +1i vs 1+Inf*1i

[Oscar Rueda Palacio]

Robin,

You could try

b <- complex(real=1, im=Inf)



------------------------------------------
Óscar Manuel Rueda Palacio
Viceintervención
Consejería de Hacienda 
Junta de Castilla y León
Tfno: 983414092   e-mail: ruepalos at jcyl.es
------------------------------------------

-----Mensaje original-----
De: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]En nombre de Robin Hankin
Enviado el: miércoles, 13 de abril de 2005 9:51
Para: R-help at stat.math.ethz.ch
Asunto: [R] Inf +1i vs 1+Inf*1i


Hi

If I have

a <- Inf + 1i

then

Re(a) is Inf, and Im(a) is 1, as expected.

But if

b <- 1 + Inf * 1i,

then

Im(b) = Inf ,  as expected,   but Re(b) = NaN, which I didn't expect.


Why this asymmetry?   How to define an object with Re(b)=1, Im(b)=Inf?


--
Robin Hankin
Uncertainty Analyst
Southampton Oceanography Centre
European Way, Southampton SO14 3ZH, UK
  tel  023-8059-7743

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