[Date Index] [Thread Index] [Author Index]

Argument types

• To: mathgroup at smc.vnet.net
• Subject: [mg5345] Argument types
• From: Olivier Georg <olivier.georg at studi.epfl.ch>
• Date: Wed, 27 Nov 1996 01:47:59 -0500
• Organization: EPF Lausanne
• Sender: owner-wri-mathgroup at wolfram.com

Hi, 

I recently disovered that you could specify the type of the arguments
of a function being defined.  For exemple, f[x_Integer] if you want x 
to be an integer.  There's also List, Real, Complex and Symbol.  But
there's also ?MatrixQ which is not in the Mathematica book, to specify
a matrix.  Are there other types?

Olivier
-- 
-------------------------------------------------------------------
| Olivier Georg      \__  e-mail:    Olivier.Georg at studi.epfl.ch  |
| Rte de Chailly 159    \__  home:   http://diwww.epfl.ch/~ogeorg |
| 1814 La Tour-de-Peilz    \__  tel: +41 21 944 15 42             |
------------------------------\__----------------------------------
| On ne peut pas tuer le temps   \__                              |
| Sans blesser un peu l'eternite    \__       ________    __o     |
| ( As if you could kill time  )       \__      _____   _`\<,_    |
| ( without injuring eternity. )          \__      ___ (_)/ (_)   |
|                   Henry David Thoreau      \                    |
-------------------------------------------------------------------