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MathGroup Archive 1995

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Re: help functions

  • Subject: [mg2469] Re: [mg2435] help functions
  • From: hay at haystack.demon.co.uk (Allan Hayes)
  • Date: Mon, 13 Nov 1995 03:27:58 GMT
  • Approved: usenet@wri.com
  • Distribution: local
  • Newsgroups: wri.mathgroup
  • Organization: Wolfram Research, Inc.
  • Sender: daemon at wri.com ( )

Jack Goldberg <jackgold at math.lsa.umich.edu>
>Subject: [mg2435] help functions
Writes

>I would like to have a "help" command which generates more
>information than ?.

Jack:
You can make you own additions as in the following example.
You might put the extensions in a package (MoreHelp` ?) and put  
this into your init file for automatic loading at the start of each  
session.

Unprotect[Plot];

Make your additions.

Plot::usage = StringJoin[Plot::usage;, "\nMy additions"];

Here they are

?Plot
Plot[f, {x, xmin, xmax}] generates a plot of f as a function of x  
from xmin to xmax. Plot[{f1, f2, ...}, {x, xmin, xmax}] plots  
several
functions fi.
My additions

Protect[Plot]

Allan

Allan Hayes
hay at haystack.demon.co.uk



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