From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>

Date: Sat, 7 Oct 2006 11:22:41 -0600 (MDT)

Date: Sat, 7 Oct 2006 11:22:41 -0600 (MDT)

*> Is there a function in NCL that calculate the remains after division? (like
*

*> the function mod in Matlab and Fortran)
*

*> _______________________________________________
*

NCL uses a operator, % , to perform the "mod" function.

One caveat, this works with variables of type integer, short and byte.

If n and m are (say) integers,

k = n%m

see:

http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclExpressions.shtml#TypesOfExpressions

--- You can write your own MOD function that behaves like the the fortran mod function. A simple version would be: undef ("MOD") function MOD (r1:numeric, r2:numeric) begin if (typeof(r1).eq."float" .and. typeof(r2).eq."float") then return( r1 - (r2 * floattointeger(r1 / r2)) ) end if if (typeof(r1).eq."double" .or. typeof(r2).eq."double") then return( r1 - (r2 * doubletointeger(r1 / r2)) ) ; be careful mixing types end if return( r1 % r2 ) ; type must be integer, short, byte end _______________________________________________ ncl-talk mailing list ncl-talk_at_ucar.edu http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Sat Oct 07 2006 - 11:22:41 MDT

*
This archive was generated by hypermail 2.2.0
: Mon Oct 09 2006 - 09:24:50 MDT
*