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Re: What is the precedence wrt Mathematica infix operators

• To: mathgroup at smc.vnet.net
• Subject: [mg82827] Re: [mg82800] What is the precedence wrt Mathematica infix operators
• From: Murray Eisenberg <murray at math.umass.edu>
• Date: Thu, 1 Nov 2007 05:04:17 -0500 (EST)
• Organization: Mathematics & Statistics, Univ. of Mass./Amherst
• References: <200710311113.GAA22477@smc.vnet.net>
• Reply-to: murray at math.umass.edu

I believe this question has arisen in this group before with respect to 
Mathematica 6. In any case, if you do some searching in the 
Documentation Center, eventually you'll find the tutorial:

   tutorial/InputSyntax

In the section "Operator Input Forms" there you'll find a long table 
that lists the operators in order of precedence along with additional 
explanation.

congruentialuminaire at yahoo.com wrote:
> Hello Mathematica UG:
> 
> I cannot find operator precedence documented anywhere. With the
> operators from Fortran (in the old days) this was always clear, i.e
> '/' before '-'.
> 
> I have been reading some code in the Trott Guidebooks which has
> constructions like 'Head @@ face[[i]] / order'. I can guess that Part
> has precedence in this expression, but what about Apply vs. Times?
> 
> Looking at the OutputForm shows that Apply has precendence. But,...
> 
> - Is this documented somewhere?
> - Do all Mathematica operators take precedence over arithmetic operators?
> 
> TIA.
> 
> Regards..
> 
> 

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305