Re: Shorthand for MapThread
- To: mathgroup at smc.vnet.net
- Subject: [mg95043] Re: [mg95015] Shorthand for MapThread
- From: "Jose Luis Gomez" <jose.luis.gomez at itesm.mx>
- Date: Sun, 4 Jan 2009 07:32:49 -0500 (EST)
- References: <200901031054.FAA02709@smc.vnet.net>
Dear Martin: First: you can write any two-arguments command in infix notation using arg1~command~arg2 For example, evaluate: a~foo~b And you will obtain foo[a,b] Therefore, you can evaluate: f[#1, #2] & ~MapThread~ {{a, b, c}, {d, e, f}} And you will obtain the same result as MapThread[f[#1, #2] &,{{a, b, c}, = {d, e, f}}] Second: In order to make it really convenient, you can evaluate at the beginning of your document: mt=MapThread After the evaluation above, every time you write mt Mathematica will = replace it with MapThread, therefore you will be able to write: f[#1, #2] & ~mt~ {{a, b, c}, {d, e, f}} which might be short enough and fast enough for your purposes. On the = other hand, something like /@@ might be too complex to implement, because Mathematica separates /@ from @ even before trying the evaluation. Hope that helps. Jose Mexico -----Mensaje original----- De: Schettler, Martin [mailto:MSchettler at scitor.com] Enviado el: S=E1bado, 03 de Enero de 2009 04:55 Para: mathgroup at smc.vnet.net Asunto: [mg95015] Shorthand for MapThread All - I frequently use Map and MapThread, and find Map's shorthand: f /@ {a,b,c} to be very convenient. As far as I can tell, MapThread has no corresponding "infix" notation. Can anyone tell me if it's possible (and if so, how) to make my own? E.g. f[#1,#2]& /@@ {{a,b,c},{d,e,f}} Thanks! Marty
- References:
- Shorthand for MapThread
- From: "Schettler, Martin" <MSchettler@scitor.com>
- Shorthand for MapThread