How to access math function

hsieh · November 19, 2008, 17:07

Dear OpenFOAMers:

I would like to revise gen6DoF.C in interDyMFoam/sloshingTank3D6DoF. I tried to use Foam::abs(... Foam::sin(..)), but, got an error saying abs is not a member function of Foam. However, Foam::sin(..) works in the same .C file. Can someone tell me how to access abs function?

Thanks!
Pei

mathieu · November 19, 2008, 21:52

Hi Pei !

According to the programmer's guide (p. P-23), the Foam::abs() does not seem to exist. I guess that Foam::mag() would do the same job for a scalar...

Mathieu

hsieh · November 20, 2008, 06:52

Thanks a lot Mathieu!

I missed this in the Programmer's guide.

Pei

November 19, 2008, 17:07	Dear OpenFOAMers: I would l	#1
hsieh Senior Member Pei-Ying Hsieh Join Date: Mar 2009 Posts: 317 Rep Power: 18	Dear OpenFOAMers: I would like to revise gen6DoF.C in interDyMFoam/sloshingTank3D6DoF. I tried to use Foam::abs(... Foam::sin(..)), but, got an error saying abs is not a member function of Foam. However, Foam::sin(..) works in the same .C file. Can someone tell me how to access abs function? Thanks! Pei

November 19, 2008, 21:52	Hi Pei ! According to the p	#2
mathieu Member Mathieu Olivier Join Date: Mar 2009 Location: Quebec City, Canada Posts: 77 Rep Power: 17	Hi Pei ! According to the programmer's guide (p. P-23), the Foam::abs() does not seem to exist. I guess that Foam::mag() would do the same job for a scalar... Mathieu

November 20, 2008, 06:52	Thanks a lot Mathieu! I mis	#3
hsieh Senior Member Pei-Ying Hsieh Join Date: Mar 2009 Posts: 317 Rep Power: 18	Thanks a lot Mathieu! I missed this in the Programmer's guide. Pei

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Missing math.h header	Travis	FLUENT	4	January 15, 2009 11:48
Problem with math equations	Jonas Larsson	CFD-Wiki	1	November 14, 2006 11:56
a math operator in UDF	lichun Dong	FLUENT	7	June 18, 2005 22:04
math description of CFD	John	Main CFD Forum	2	December 13, 2002 02:34
MATH * MATH + MATH - MATH	Mehdi BEN ELHADJ	Main CFD Forum	2	October 9, 2000 16:02