Built-In fuctions redefined---How?
- To: mathgroup at smc.vnet.net
- Subject: [mg62589] Built-In fuctions redefined---How?
- From: Virgil Stokes <virgil.stokes at it.uu.se>
- Date: Tue, 29 Nov 2005 04:44:26 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
How can I introduce the following definitions:
cx for Cos[x]
sx for Sin[x]
where, the argument x, will always be a single symbol, and then still be
able to use the trigonometric identities associated with Sin, Cos; e.g.,
cx^2 + sx^2 = 1
Note, this is not c x (3 symbol expression); but, cx (2 symbol
expression).
Why? Because I have some rather large matrices with many elements that
contain expressions in Cos and Sin terms that make printing and
displaying messy and using the MatrixForm can give truncation in the
printed output.
--V. Stokes