The difference between Needs[ ] & Get[ ]
- To: mathgroup at smc.vnet.net
- Subject: [mg40149] The difference between Needs[ ] & Get[ ]
- From: "neuron" <b90401114 at ntu.edu.tw>
- Date: Sat, 22 Mar 2003 05:10:39 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hello MathGroup gurus,
I am new to Mathematica and now reading "Programming In Mathematica."
I am a little confused with Needs[ ] & Get[ ].
I kow that Needs[ ] checks $Packages whether the package is present or
not and I usually use Needs[ ] to load a package.
On the xiv page of "ProgrammingInMathematica" it says "Even better is
but on page 13,
when I input
an error occurs:
Needs::nocont: Context ProgrammingInMathematica`ComplexMap1` was not
created when Needs was evaluated.
I don't know why, for the Help says "Needs["context`"] calls
Get["context`"]. By convention, the file loaded in this way is the one
which contains a package that defines context`. "
I execute Mathematica 4.1 on Windows98
Thanks for any advice.
Prev by Date:
Re: Newbie question
Next by Date:
Re: Mathematica newbie question : NDSolve
Previous by thread:
Re: Q: About Needs and something about Contexts
Next by thread:
RE: The difference between Needs[ ] & Get[ ]