From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/4277 Path: main.gmane.org!not-for-mail From: Johannes Huesing Newsgroups: gmane.comp.tex.context Subject: MathML book Date: Tue, 6 Mar 2001 20:29:16 +0100 Sender: owner-ntg-context@let.uu.nl Message-ID: <20010306202916.A542@ruhrau.de> NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1035394957 24351 80.91.224.250 (23 Oct 2002 17:42:37 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2002 17:42:37 +0000 (UTC) Original-To: ntg-context@ntg.nl Xref: main.gmane.org gmane.comp.tex.context:4277 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:4277 Dear ConTeXtuals, Hans distributed some printed (double-sided) versions of the MathML manuals on the Dante meeting so I took one and looked into it. I think I sent this message before but didn't see it on the list, so here the gist: The statistics examples are not quite correct in my opinion. They confuse between empirical values and their theoretical counterpart. The first example is correct. The second example is not incorrect but could be formulated a bit more strongly by taking the expectation of the right and replacing the \approx by an equal sign. The third example is wrong as the variance \sigma^2 is a theoretical value and the expression in the middle its estimate. I would denote the estimate as s^2 or \hat\sigma^2. Moreover, I would place the exponent before the parenthesised argument and not behind it, as \sigma^2 is a more basic value to us statisticians than \sigma. For statistical expressions, I would like to see tags for expectation, probability, estimate and conditioning (as in f(x|\mu, \sigma^2)). Symbolic algebraic programs could only use the expectation, the rest would rather be syntactic sugar. Thanks for the lift to Duisburg, Hans, hope you had a safe ride home! Groet Johannes -- "Human Genome" may be a binary file. See it anyway?