From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sebastien Vauban" Subject: Re: using a simple numerical variable in an org text ocument Date: Wed, 14 Aug 2013 07:54:31 +0200 Message-ID: <86wqno24x4.fsf@somewhere.org> References: <86mwp922bt.fsf@somewhere.org> <877ggbg91d.fsf@duenenhof-wilhelm.de> Mime-Version: 1.0 Content-Type: text/plain Return-path: List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org-mXXj517/zsQ@public.gmane.org Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org-mXXj517/zsQ@public.gmane.org To: emacs-orgmode-mXXj517/zsQ@public.gmane.org Hi Dieter, Dieter Wilhelm wrote: > "Sebastien Vauban" writes: >> As macros are expanded before Babel code is evaluated, I would >> try #+scr_calc{...} with MACRO constants in the formula (untested). > > it seems that you're working with calc source blocks! :-) I'd like to > leverage calc in org-mode (I'm thinking of unit conversions, etc.: > Mathematica for free men) but I'm not getting it. I assume that in an > #+src_calc block the mode of operation of calc is algebraic, isn't it? > > #+BEGIN_SRC calc > 2 + 2 > sqrt(8) > # above is working, by the way, does a calc block have a comment sign? > 2 cm > calc-convert-units(mm) > #+END_SRC > > #+RESULTS: > : calc - convert - units(mm) > > Above attempt is not working. Is it also possible to use the RPN? Like > in this fictive block: > > #+BEGIN_SRC calc :mode rpn > 2 2 + > 2 'mm 8 'cm + 'in u c > #+END_SRC > > And the *Calc Trail* buffer seems not to reflect any operations, despite > Calc showing the block results in its calculator buffer! Sorry to come back to this with a huge delay, but in fact I don't have any experience with Calc mode at all! I can't answer your questions without digging the manuals. The only thing I make use of is inline Calc for simple computations, to avoid making mistakes in prices (fictitious example): --8<---------------cut here---------------start------------->8--- The work will last 20 days and cost src_calc[:results raw]{20 * 498} USD at the base rate. --8<---------------cut here---------------end--------------->8--- Best regards, Seb -- Sebastien Vauban