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Topic: Mathematica and Lisp
Replies: 83   Last Post: Mar 5, 2013 10:12 PM

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Richard Fateman

Posts: 1,404
Registered: 12/7/04
Re: Mathematica and Lisp
Posted: Mar 3, 2013 2:21 AM
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On 3/2/2013 12:44 AM, Bill Rowe wrote:
...

<snip>
I mostly agree with you!

>
> I agree Mathematica is different in a great many ways. And I can
> see how someone experienced in say C or another language would
> see Mathematica as strange and unusual. But I really don't see
> the problem of understanding Mathematica symbols, precedence
> etc. as being any different than learning pointers are other
> aspects of C. It is simply a matter of study and using
> Mathematica just as it is a case of study and using C to learn
> pointers etc.
>


C is not my favorite programming language .. see
www.cs.berkeley.edu/~fateman/papers/software.pdf

Nevertheless one can almost argue that if you know about
how computers work on the assembly language level you have
a modest chance of mapping C constructs to assembler-like
code "in your head". I've taught this as part of an
undergraduate course in "Machine Structures".

For EF, the number of unfamiliar operators and the
number of distinct precedences is substantial.

There is a table in the virtual book documentation "operation precedence"
in the section Operator Input Forms.

There are roughly
69 different precedence categories listed.

In some precedence classes there are many forms.
For example in the category 4th from the bottom there are these
operators which, being in the same class, would be parsed from
left to right (or is it right to left?) anyway, here they are.

=, :=, ^=, ^:=, =. ->,
and also the matchfix
/: =
/: :=

While some of the operators have no built-in meaning, and some are
pretty obscure, they are all part of the syntax. There are also quite
a few multi-character operators, some of which are new to me.. @@@ ?

This is an attempt to document one of reasons I think EF is NOT just
as easy to learn as any other language. I've previous mentioned other
reasons which can be grouped generally under the category "semantics".

RJF





>





Date Subject Author
1/11/13
Read Mathematica and Lisp
amzoti
1/12/13
Read Re: Mathematica and Lisp
Richard Fateman
1/12/13
Read Re: Mathematica and Lisp
David Bailey
1/14/13
Read Re: Mathematica and Lisp
Richard Fateman
1/14/13
Read Re: Mathematica and Lisp
David Bailey
1/16/13
Read Re: Mathematica and Lisp
Richard Fateman
1/18/13
Read Re: Mathematica and Lisp
David Bailey
1/22/13
Read Re: Mathematica and Lisp
Richard Fateman
1/22/13
Read Re: Mathematica and Lisp
David Bailey
1/24/13
Read Re: Mathematica and Lisp
Richard Fateman
1/25/13
Read Re: Mathematica and Lisp
Richard Fateman
1/26/13
Read Re: Mathematica and Lisp
Murray Eisenberg
1/26/13
Read Re: Mathematica and Lisp
Murray Eisenberg
1/26/13
Read Re: Mathematica and Lisp
W. Craig Carter
1/16/13
Read Re: Mathematica and Lisp
Murray Eisenberg
1/16/13
Read Re: Mathematica and Lisp
Richard Fateman
1/16/13
Read Re: Mathematica and Lisp
David Bailey
1/18/13
Read Re: Mathematica and Lisp
Murray Eisenberg
1/31/13
Read Re: Mathematica and Lisp
Noqsi
2/2/13
Read Re: Mathematica and Lisp
Daniel Lichtblau
2/3/13
Read Re: Mathematica and Lisp
Richard Fateman
2/2/13
Read Re: Mathematica and Lisp
Richard Fateman
2/3/13
Read Re: Mathematica and Lisp
David Bailey
2/5/13
Read Re: Mathematica and Lisp
Richard Fateman
2/6/13
Read Re: Mathematica and Lisp
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2/6/13
Read Re: Mathematica and Lisp
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2/3/13
Read Re: Mathematica and Lisp
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2/3/13
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Noqsi
2/6/13
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2/6/13
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2/6/13
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2/4/13
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2/6/13
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2/8/13
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2/9/13
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2/9/13
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2/10/13
Read Re: Mathematica and Lisp
michael
2/10/13
Read Re: Mathematica and Lisp
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2/8/13
Read Re: Mathematica and Lisp
Andrzej Kozlowski
2/8/13
Read Re: Mathematica and Lisp
Noqsi
2/9/13
Read Re: Mathematica and Lisp
Richard Fateman
2/10/13
Read Re: Mathematica and Lisp
David Bailey
2/9/13
Read Re: Mathematica and Lisp
Matthias Bode
2/15/13
Read Re: Mathematica and Lisp
Noqsi
2/17/13
Read Re: Mathematica and Lisp
David Bailey
2/18/13
Read Re: Mathematica and Lisp
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2/18/13
Read Re: Mathematica and Lisp
David Park
2/22/13
Read Re: Mathematica and Lisp
Richard Fateman
2/23/13
Read Re: Mathematica and Lisp
David Bailey
2/23/13
Read Re: Mathematica and Lisp
Richard Fateman
2/25/13
Read Re: Mathematica and Lisp
David Bailey
2/26/13
Read Re: Mathematica and Lisp
Richard Fateman
2/27/13
Read Re: Mathematica and Lisp
Bill Rowe
2/27/13
Read Re: Mathematica and Lisp
Richard Fateman
3/2/13
Read Re: Mathematica and Lisp
Bill Rowe
3/3/13
Read Re: Mathematica and Lisp
Richard Fateman
3/3/13
Read Re: Mathematica and Lisp
Noqsi
3/5/13
Read Re: Mathematica and Lisp
Richard Fateman
3/5/13
Read Re: Mathematica and Lisp
Vince Virgilio
3/3/13
Read Re: Mathematica and Lisp
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1/16/13
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1/16/13
Read Re: Mathematica and Lisp
Richard Fateman
1/18/13
Read Re: Mathematica and Lisp
Noqsi
2/23/13
Read Re: Mathematica and Lisp
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2/25/13
Read Re: Mathematica and Lisp
Richard Fateman
2/26/13
Read Re: Mathematica and Lisp
Noqsi

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