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re: Specifying rules

• To: mathgroup at yoda.physics.unc.edu
• Subject: re: Specifying rules
• From: "Dr A. Hayes" <hay at leicester.ac.uk>
• Date: Mon, 20 Jun 1994 15:40:41 +0100 (BST)

Marnix Van Daele writes
>Hello, I have a problem with complex numbers !

> I want to tell Mma that a is real, such that
> Im[a+I] will give 1,
> but I do not get this result.

> I have tried

> a /: Im[a]=0


> Can anyone help me ?

Load the package Algebra`ReIm`

Allan Hayes
hay at le.ac.uk