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[O] [babel] calc var floating point number error
From: |
Giovanni Ridolfi |
Subject: |
[O] [babel] calc var floating point number error |
Date: |
Fri, 20 Jul 2012 14:55:53 +0100 (BST) |
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
- [O] [babel] calc var floating point number error,
Giovanni Ridolfi <=