LinuxQuestions.org dogpatch

## Building expressions lists - 2

Posted 06-19-2019 at 02:46 PM by dogpatch

So, in mid-March I applied the intelligent sorting logic to lump together, and thus identify algebraically equivalent duplicate expressions, and also those expressions which are not (apparently) algebraic equivalents, but appear to produce the exact same solutions. Of these groups of effectively equivalent expressions, my program then eliminated all but the preferred (briefest and 'best-looking') expression. This produced a list of 1315 algebracic expressions, to which I began to refer as my master...
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## Building expressions lists - 1

Posted 05-29-2019 at 02:46 PM by dogpatch
Updated 06-19-2019 at 02:39 PM by dogpatch

Version 3 of my LQ Challenge program (LQpz_3.c) was a brute force approach, generating Reverse Polish Notation ('rpn') expressions of all conceivable combinations of 4 digits with arithmetic operations + - * / ^ and _ ( the last being for leading negative sign in front of any of the 4 digits). The RPN expression thus generated was evaluated using fractional-exponential integer math routines ('fx') and, if the value was within the target range of 0 to 100, the rpn was converted to an algebraic expression....
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## 2nd LQ blog entry

Posted 09-05-2018 at 11:58 AM by dogpatch

After almost 12 years, here is my second blog entry.

In the interim, I've dabbled in other web stuff, including writing my own blog software. You may view that blog at http://cyberjerry.info/amigos. WARNING: My blog leans quite heavily in the direction of religious rants. It is very lightly trafficked. Perhaps the two traits are related.
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## My 1st linux blog entry

Posted 12-31-2006 at 10:06 PM by dogpatch

Just testing, basically.

If anyone is really interested, i have a personal blog at http://dogpatchofthenorth.blogspot.com as well.

- dogpatch
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