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
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