Re: How do I get Mathematica to Simplify this to 1?
- To: mathgroup at smc.vnet.net
- Subject: [mg104483] Re: How do I get Mathematica to Simplify this to 1?
- From: dushan <dushanm at spinn.net>
- Date: Sun, 1 Nov 2009 17:54:20 -0500 (EST)
- References: <hcgpkt$egn$1@smc.vnet.net> <hcjiv0$jmu$1@smc.vnet.net>
Thank you all for the replies.
The central point seems to be that Norm ignores the previously stated
Assumptions, and Simplify has to re-introduce them. Strange.
Peter, thank you for the starter palette, which I'll extend. It'll
come in especially handy to decipher David's and DrMajorBob's
comments :)
- Dushan
On Nov 1, 2:04 am, Peter Breitfeld <ph... at t-online.de> wrote:
> dushan wrote:
> <snip>
>> A separate question: Is there available somewhere a short list of
>> symbols (such as '!!', '&&', "=.", '/@', etc.) and their meanings? A
>> Mathematica book index would generally start with such a list, but
>> having it available as a 1-page crib-sheet would be very helpful to
>> newbies like me.
>
> May be this little palette is a starter:
>
> CreatePalette[{
> Grid[{
> {" f @ x", "f[x]"},
> {" x // f", "f[x]"},
> {" x ~ f ~ y", "f[x, y]"},
> {" f /@ x", "Map[f, x]"},
> {" f //@ x", "MapAll[f, x]"},
> {" f @@ x", "Apply[f, x]"},
> {" f @@@ x", "Apply[f, x, {1}]"},
> {" a && b", "And[a, b]"},
> {" a \[And] b", "And[a, b]"},
> {" a || b", "Or[a, b]"},
> {" a \[Or] b", "Or[a, b]"},
> {" ! a", "Not[a]"},
> {" \[Not] a", "Not[a]"},
> {" a \[Union] b", "Union[a, b]"},
> {" a \[Intersection] b", "Intersection[a, b]"},
> {" a <> b", "StringJoin[a, b]"},
> {" a /. b", "ReplaceAll[a, b]"},
> {" a //. b", "ReplaceRepeated[a, b] "},
> {" a /; b", "Condition[a ,b]"},
> {" a /: x=y", "TagSet[a, x, y]"},
> {" a /: x:=y", "TagSetDelayed[a, x, y] "}
> },
> Alignment -> Left,
> BaseStyle -> {FontFamily -> "Palatino", FontSize -> 12=
},
> Dividers -> {False, {4 -> Black, 6 -> Black, 8 -> Black,
> 14 -> Black, 16 -> Black, 17 -> Black, 19 -> Black,
> 20 -> Black}}
> ]
> }]