Thread and MapThread
- To: mathgroup at smc.vnet.net
- Subject: [mg29868] Thread and MapThread
- From: "David Park" <djmp at earthlink.net>
- Date: Sat, 14 Jul 2001 01:36:59 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Dear MathGroup,
Here is a function:
ftest[x_, y_] := {f1[x], f2[y]}
Why does the following work...
MapThread[ftest, {{x1, x2, x3}, {y1, y2, y3}}]
{{f1[x1], f2[y1]}, {f1[x2], f2[y2]}, {f1[x3], f2[y3]}}
...but the following does not work.
Thread[ftest[{x1, x2, x3}, {y1, y2, y3}]]
{f1[{x1, x2, x3}], f2[{y1, y2, y3}]}
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/