<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">11 okt. 2023 kl. 02:39 skrev Erik Carvalhal Miller via Unicode <<a href="mailto:unicode@corp.unicode.org" class="">unicode@corp.unicode.org</a>>:</div></blockquote><blockquote type="cite" class=""><div class=""><div class="">Letʼs consider an equation that youʼll probably recognize, font support<br class="">willing: 𝐸 = 𝑚𝑐². Thanks to the power of Unicode, we could use it<br class="">in the same plain‐text document as, say, ℰ = 𝐦𝕔² while keeping both<br class=""></div></div></blockquote><div><br class=""></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">That's not really a proper way of representing math expressions.<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">For one thing, compatibility normalisation would ruin them (true,<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">one is not supposed to apply that, which I agree with, but it sometimes<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">is anyway). Another thing is that these "mathematical" characters<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">were added because of letting MathML represent the (semantically,<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">in some sense of that word, significant) style differences would<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">be too verbose to express "properly" in MathML. (Still, MathML do<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">still not really use them, it seems.) And, without any kind of<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">structural coding, only very limited (and very linear) math<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">expressions can be given like that.<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">If you are interested in representing math expressions much more<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">generally in (otherwise) plain text (or in the context of ECMA-48<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class="">formatting, or even in a HTML or SVG context), I did make a proposal for that: see<o:p class=""></o:p></div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><a href="https://github.com/kent-karlsson/control/blob/main/math-layout-controls-2023-B.pdf" style="color: rgb(5, 99, 193);" class="">https://github.com/kent-karlsson/control/blob/main/math-layout-controls-2023-B.pdf</a>.</div></div></div><br class=""><div class="">/Kent K</div><div class=""><br class=""></div></body></html>