Re: What is the precedence wrt Mathematica infix operators
- To: mathgroup at smc.vnet.net
- Subject: [mg82831] Re: What is the precedence wrt Mathematica infix operators
- From: Szabolcs Horvát <szhorvat at gmail.com>
- Date: Thu, 1 Nov 2007 05:06:21 -0500 (EST)
- References: <fg9om3$md1$1@smc.vnet.net>
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? > This is again proof that a hand-made book index can be much more useful than any kind of full-text search! I found the relevant sections immediately in the Mathematica 5.2 help. It took me somewhat more time to look up the same sections in the v6 documentation, even tough I know their title ... : tutorial/TheSyntaxOfTheMathematicaLanguage tutorial/InputSyntax (scroll down to Operator Input Forms) -- Szabolcs