Comments for Learning Lisp

Comment on Lisp50 Notes part VI: The Future of Lisp by Elias Amaral

Elias Amaral — Thu, 21 May 2009 01:17:58 +0000

you wanted.. arc?

Comment on Using Regex Functions in Excel by Chad

Chad — Tue, 19 May 2009 13:17:40 +0000

This is excellent. Thanks!

Comment on Why UML Fails to Add Value to the Design and Development Process by Ben Gillis

Ben Gillis — Fri, 08 May 2009 17:15:12 +0000

You could have purchased the book online for much le$$.
I got mine for half that price.

Comment on Why UML Fails to Add Value to the Design and Development Process by Ben Gillis

Ben Gillis — Fri, 08 May 2009 17:13:09 +0000

it certainly is true, have you tried the same projects via domain-specific modeling?
keep in mind, en mass publication is not the leading edge of competitive methodology.
the best practices are competitive advantages, and while slowly coming out to the general audience, the practice of DSM has indeed kicked the alternatives a$$ when it comes to productivity.

Comment on Why UML Fails to Add Value to the Design and Development Process by Ben Gillis

Ben Gillis — Fri, 08 May 2009 17:11:23 +0000

> (Not everyone has the time to port a language implementation to a new platform *and* get their application running.)
Kelly’s remark applies here, the *tooling* is necessary. And, yes, a *multitude* of domain-specific languages can be developed, rapidly, with zero-to-near zero learning curve? Why such a low learning curve? B/c the grammar/nomenclature is the SMEs/stakeholders terminology, i.e. their domain. RAD DSLs are indeed possible, e.g. http://bengillis.wordpress.com/2009/04/18/a-variety-of-dsls-in-real-world-examples/

Comment on How to Get the Most Out of Your Eccentric Programmer/”Genius” by jimy

jimy — Fri, 01 May 2009 19:02:25 +0000

definitions induce limitations. we were all this way before we read the article but i had no idea i was INPFJ.

Comment on My Solution to the Rounding-Up-to-the-Nearst-Power-of-Two Problem by Andrew

Andrew — Tue, 24 Mar 2009 01:54:34 +0000

I know this is an old post, but Google offered it up when I’d forgotten the optimal solution.

The most efficient solution I’ve found to this is explained and coded out, in C, here:
http://acius2.blogspot.com/2007/11/calculating-next-power-of-2.html

No loops is a big win. You do need to know how many bits you’re working with, which is usually fine but with bignums you’d need to make it general.

If the calc is only done occasionally then it doesn’t matter which method is used, I just thought this solution was very cool.

Comment on Using “Query replace regexp” to remove blank lines from a file in Emacs by benlr

benlr — Thu, 19 Mar 2009 11:46:10 +0000

M-x flush-lines ^$

is much simpler

Comment on Using Regex Functions in Excel by Alo

Alo — Tue, 03 Feb 2009 23:50:47 +0000

Of course, you could also have just used the =search() function.

for your example, you’d find =search(“a”, B2, 1) and if it existed, it would list where it was in the cell, else return an error.

=if(iserror(search(“a”, B2, 1)),”Does not Exist”,search(“a”, B2, 1))

Would even tell you it doesn’t exist in that cell if you wanted.

Comment on Why UML Fails to Add Value to the Design and Development Process by Dinesh Rajak

Dinesh Rajak — Sat, 03 Jan 2009 07:33:52 +0000

UML, seems to be the best way modeling a system. It scores upper hand in giving the insight of how system is supposed to behave under ideal and non-ideal cases. Following the sequential steps of Use Case, it becomes very easy to think of what codes needs to be written for building a system