- From: David Carlisle <davidc@nag.co.uk>
- Date: Fri, 23 Nov 2001 15:45:42 GMT
- To: Maksims_Zizkuns@exigengroup.lv
- CC: www-math@w3.org
> Is it identifier of something declared somewhere else by <declare> > construction or anything also? > Can <ci> identifier obtain it's value in a way other than <declare>ing ? The meaning of your MathML expression is the same as the meaning of 2 + x That is, in some numerical systems it won't mean anything at all unless x has already been declared, but in other symbolic systems it will be interpreted as the expression 2 + x. You might have previously (or later) given x a value, but this is not required. You could process this expression keeping x as a free variable, for example you could differentiate it with respect to x and get 2, or square it and get x^2 + 4x + 4. David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service.
Received on Friday, 23 November 2001 10:46:25 UTC