tag:blogger.com,1999:blog-4987609114415205593.post3229031480404227670..comments2024-03-28T07:29:53.593+00:00Comments on M-Phi: The origins of modern algebra and its notationsJeffrey Ketlandhttp://www.blogger.com/profile/01753975411670884721noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-4987609114415205593.post-60749267107224843642020-11-11T09:58:41.950+00:002020-11-11T09:58:41.950+00:00Wow! Its really amazing blog more info Visit on Mc...Wow! Its really amazing blog more info Visit on <a href="www.support-nummerdeutschland.com/mcafee-support-deutschland.html/" rel="nofollow">Mcafee support hotline<br /></a>Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4987609114415205593.post-81492257512293542252020-11-11T07:25:50.625+00:002020-11-11T07:25:50.625+00:00Hi.. I read your blog which is gud and informative...Hi.. I read your blog which is gud and informative. 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Not to mention that a french printer, especially in that time, would want to have many instances of 'z' available for setting dialog. (« frère Jacques, dormez-vous ? »)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4987609114415205593.post-8137271094336752952011-10-24T11:45:19.185+01:002011-10-24T11:45:19.185+01:00Hi Dave, legitimate question. My source for this p...Hi Dave, legitimate question. My source for this piece of information was Alex Bellos' book, but right now I don't have it handy to check whether he gives any further references. But you are right, it may well be one of those 'urban legends' that everybody keeps repeating... It would be great to find a more definitive source for the story.Catarinahttps://www.blogger.com/profile/03277956118114314573noreply@blogger.comtag:blogger.com,1999:blog-4987609114415205593.post-1805548533316465302011-10-24T11:17:50.836+01:002011-10-24T11:17:50.836+01:00I had a question about your comments on why "...I had a question about your comments on why "x" is most frequently used as a variable, and the assertion that it is because it is the least frequently used letter in the French alphabet.<br /><br />I first came across this idea in a book by Art Johnson. I contacted him about it and asked if he could provide the original source of this bit of information. He said that he didn't have the reference. So far, every mention of this that I have ever seen in any book has listed Art Johnson as a source. (not that I have done an exhaustive search.) The earliest mention of anything connected with this idea that I was able to find was in an 1885 magazine article in Biblioteca Mathematica, but it still did not substantiate the claim or give other references.<br /><br />I was wondering if you have any references on this bit of information that you'd be willing to share. Citations are fine... I'll go find the originals. I'm not trying to discredit the claim, but rather, I'm interested in researching it and I'm not sure where to continue.<br /><br />Thanks so much,<br /><br />DaveMr. Srebnickhttps://www.blogger.com/profile/16831179339171762714noreply@blogger.comtag:blogger.com,1999:blog-4987609114415205593.post-20144120884641253732011-08-22T19:06:49.896+01:002011-08-22T19:06:49.896+01:00Catarina, many thanks. Look forward to this book.
...Catarina, many thanks. Look forward to this book.<br />I'm interested in various notational matters, and I'm pleased you've gathered some interesting material from the history of algebra. <br /><br />An example that bothers me is the best way to write sequences, and I've finally settled on <br /><br />$(a_i: i \in I)$,<br /><br />where $I$ is the index set.<br />Although we see things like:<br /><br />$(a_0,\dots, a_n)$<br /><br />$\langle a_0, \dots, a_n \rangle$<br /><br />$\overline{a}$<br /><br />$\underline{a}$<br /><br />$\vec{a}$<br /><br />$(a_i)_{i \in I}$<br /><br />$\{a_i\}_{i \in I}$<br /><br />$(a_i)$<br /><br />$\{a_i\}$<br /><br />and no doubt others ... And sometimes a sequence starts with $a_0$ and sometimes with $a_1$.Jeffrey Ketlandhttps://www.blogger.com/profile/01753975411670884721noreply@blogger.com