Re: Re: Re: record intermediate steps

*To*: mathgroup at smc.vnet.net*Subject*: [mg73484] Re: [mg73446] Re: [mg73126] Re: [mg73095] record intermediate steps*From*: "Chris Chiasson" <chris at chiasson.name>*Date*: Mon, 19 Feb 2007 06:33:24 -0500 (EST)*References*: <200702161021.FAA09937@smc.vnet.net>

If the list of expressions returned by TracePrint TraceInteral->True is relatively complete, here is a method that will return a list of symbols called from the System` context during the simplification. This code could easily be modified to assign the list of expressions encountered during the evaluation to a variable, from which the aforementioned list of symbols could be cross referenced (to see how they were called) Block[{$Output=List@OpenWrite["C:\\msgStream.m"]}, TracePrint[FullSimplify[Cos[2*Pi/7]*Cos[4*Pi/7]*Cos[8*Pi/7]],TraceInternal->True]; Close/@$Output]; Thread[Union@Cases[ReadList["C:\\msgStream.m", HoldComplete[Expression]],symb_Symbol/;AtomQ@Unevaluated@symb&& Context@Unevaluated@symb==="System`":>HoldComplete@symb,{0,Infinity},Heads->True], HoldComplete] -- http://chris.chiasson.name/

**References**:**Re: Re: record intermediate steps***From:*"Chris Chiasson" <chris@chiasson.name>