Re: Working with arrays
- To: mathgroup at smc.vnet.net
- Subject: [mg131241] Re: Working with arrays
- From: collabe <collabe2013 at gmail.com>
- Date: Thu, 20 Jun 2013 04:46:32 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
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If A = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; xtest = {4, 5, 6}; lA\[CenterDot]xtest (* First case *) {{a, b}, {c, d}} . {x, y} (* Second case *) The output is: {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}\[CenterDot]{4, 5, 6} {a x + b y, c x + d y}