User talk:Mdnahas

December 2009

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• The following is the log entry regarding this warning: Binary tree was changed by Mdnahas (u) (t) deleting 15942 characters on 2009-12-30T22:24:21+00:00 . Thank you. ClueBot (talk) 22:24, 30 December 2009 (UTC)[reply]

Hello. When you split the "binary tree" article, you removed all the references and a fair amount of the content. The definitions, for instance, took a few years to settle. I would suggest that splits should start by making sure all the original content is somewhere, and then go with rewriting. That way the text is in the history of the new articles, too. Gimmetrow 15:14, 31 December 2009 (UTC)[reply]

Your recent edits

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copy-editing conventions

Hello.

Please notice my recent edits to history of type theory. In particular

• In ranges of years and ranges of pages and the like, one uses an en-dash rather than a hyphen, thus

right: 1948–1973

wrong: 1948-1973

right: pages 304–421

wrong: pages 304-421

• Likewise in things like Haskell–Curry, where the dash means "and", one uses an en-dash rather than a hyphen.
• Use lower-case initials in section headings except that the first letter in the heading is capital (unless there's some special reason to use lower case) and things like people's names, etc. bear a capital initial.

These things are codified in WP:MOS. Michael Hardy (talk) 20:07, 16 February 2013 (UTC)[reply]

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Edit to finite fields - added error correction code..

Link to differences in before and after your revision:

finite field - error correction code

"The finite field almost always has characteristic of 2, since computer data is stored in binary" - true, with the main exception PDF417 bar code which uses GF(929), but GF(929) is used in the Wiki Reed Solomon examples. It might be worth noting in one of the articles that usage of GF(929) is not that common.

"Some CPUs have special instructions to perform operations on these finite fields." - I'm only aware of carryless multiply such as PCLMULQDQ xmm instruction on X86, which can be used for carryless modulo, useful for CRC as well as finite fields. A % B implemented as C = 2^64 / B (table lookup), Q = (A*C)>>64, result = A XOR (Q*B). There is also PSHUFB xmm instruction, which can be used for a generic parallel table lookup operation, using 4 bit indexes. Splitting an 8 bit byte into two 4 bit parts would allow for a fast GF(2^8) multiply of an array of bytes by a single byte, useful for erasure codes that operate on blocks of data, but also for any type of parallel table lookup for an array of bytes and a single byte. The actual table lookup would be indexed by the single byte.

Rcgldr (talk) 20:59, 26 June 2021 (UTC)[reply]

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I have sent you a note about a page you started

Hello, Mdnahas

Thank you for creating Matching logic.

User:SunDawn, while examining this page as a part of our page curation process, had the following comments:

Thanks for the article!

To reply, leave a comment here and begin it with {{Re|SunDawn}}. Please remember to sign your reply with ~~~~ .

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✠ SunDawn ✠ (contact) 06:05, 15 July 2022 (UTC)[reply]

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Concern regarding Draft:Quantity controls

Hello, Mdnahas. This is a bot-delivered message letting you know that Draft:Quantity controls, a page you created, has not been edited in at least 5 months. Drafts that have not been edited for six months may be deleted, so if you wish to retain the page, please edit it again or request that it be moved to your userspace.

If the page has already been deleted, you can request it be undeleted so you can continue working on it.

Thank you for your submission to Wikipedia. FireflyBot (talk) 01:01, 15 July 2023 (UTC)[reply]

Your draft article, Draft:Quantity controls

Hello, Mdnahas. It has been over six months since you last edited the Articles for Creation submission or Draft page you started, "Quantity controls".

In accordance with our policy that Wikipedia is not for the indefinite hosting of material deemed unsuitable for the encyclopedia mainspace, the draft has been deleted. When you plan on working on it further and you wish to retrieve it, you can request its undeletion. An administrator will, in most cases, restore the submission so you can continue to work on it.

Thanks for your submission to Wikipedia, and happy editing. Liz ^Read! Talk! 00:20, 12 August 2023 (UTC)[reply]

@Liz can you tell me what the heck is going on? I still have no idea why this page never made it onto the "mainspace". Wikipedia has got all these new processes and ruling and no good introduction to how to navigate them. (That we're having this conversation on my "User talk" page is confusing! Why is that the place??)

I'm an expert and edited Wikipedia for years. That this contribution didn't get to readers is frustrating. I feel like Wikipedia is putting up roadblocks rather than helping me. Mdnahas (talk) 15:10, 14 August 2023 (UTC)[reply]

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