[Date Index] [Thread Index] [Author Index]

Q: Thread behaviour

• To: mathgroup at smc.vnet.net
• Subject: [mg57933] Q: Thread behaviour
• From: Dick Barends <dick.barends at wxs.nl>
• Date: Mon, 13 Jun 2005 05:50:50 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hallo,

k[x_,y_] = x^2+y^2
Thread[k[a+b,c d],Plus]
gives: (a+b)^2+c^2 d^2
I would expect: a^2 + (c d)^2 + b^2 + (c d)^2 (See below)

-----------------
When I use:
Thread[m[a+b, c d],Plus]
gives: m[a, c d] + m[b, c d]
This is what should happen.

What gives "m" a different solution than "k"????

I hoop some of you will answer:-)

greetings
Dick

• Follow-Ups:
  • Re: Q: Thread behaviour
    • From: Andrzej Kozlowski <andrzej@akikoz.net>