Complex -> List does not work
- To: mathgroup@smc.vnet.net
- Subject: [mg10495] Complex -> List does not work
- From: Gianluca Gorni <gorni@dimi.uniud.it>
- Date: Tue, 20 Jan 1998 02:22:45 -0500
Hello!
I naively tried the following way of turning a complex number into a
couple of real numbers:
2 + 3 I /. Complex -> List
but it gives me back
2 + 3 I
even though the full form of 2+3I is Complex[2,3]. The reverse however
is possible:
{2,3}/.List->Complex gives 2+3I
The help browser says that "you have to use Re and Im to extract parts
of Complex numbers".
Why this exception to the basic principles of replacement rules?
Gianluca Gorni
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Gianluca Gorni
Universita` di Udine
Dipartimento di Matematica e Informatica via delle Scienze 208
I-33100 Udine UD
Italy
Ph.:(39) (432) 558422 Fax:(39) (432) 558499
mailto:gorni@dimi.uniud.it
http://www.dimi.uniud.it