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From: Giovanni Ridolfi <giovanni.ridolfi@yahoo.it>
To: Orgmode <emacs-orgmode@gnu.org>
Subject: [babel] calc var floating point number error
Date: Fri, 20 Jul 2012 14:55:53 +0100 (BST)	[thread overview]
Message-ID: <1342792553.1277.YahooMailNeo@web29802.mail.ird.yahoo.com> (raw)

Hello everyone,

GNU Emacs 24.1.1 (i386-mingw-nt6.1.7601) of 2012-06-10 on MARVIN
Org-mode version 7.8.11 (eed478ffa @ 


I have a problem with babel and calc.

I am not able to pass (as variable) floating point numbers. 

this example works:

#+BEGIN_SRC calc :var thi=20 :var tha=90 :var a=10 :var rho=7854 :var cp=434 :var r=5
 tha -  (tha - thi) * exp((-3.0*a)/(rho*cp*r))
#+END_SRC

#+RESULTS:
: 20.0001232163


However var "r" should be 0.05, but if I use such floating point number I got an error:


#+NAME sphere
#+BEGIN_SRC calc :var thi=20 :var tha=90 :var a=10 :var rho=7854 :var cp=434 :var r=0.05
 tha -  (tha - thi) * exp((-3.0*a)/(rho*cp*r))
#+END_SRC

#+RESULTS:
| 19 | Expected a number |

This behaviour has been reported also in SO

http://stackoverflow.com/questions/9559221/simple-math-results-in-an-emacs-org-mode-file-with-babel


cheers,
Giovanni

next             reply	other threads:[~2012-07-20 13:56 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-20 13:55 Giovanni Ridolfi [this message]
2012-07-20 14:34 ` [babel] calc var floating point number error Eric Schulte
2012-07-25 15:32   ` Eric Schulte

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