Re: How to get the Outer Product of two Matries ?
- To: mathgroup at smc.vnet.net
- Subject: [mg25873] Re: [mg25856] How to get the Outer Product of two Matries ?
- From: BobHanlon at aol.com
- Date: Sat, 4 Nov 2000 02:04:17 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 11/1/2000 3:05:59 AM, gzgear at yahoo.com writes: >I want to ask a question about the >operation of Matrix: >matr1={x1,y1,z1}; >matr2={x2,y2,z3}; >I want to get the result of this operation: >OuterProduct=matr1 x matr2(this expression >is the same as that in Linear Algebra .) The answer >is:x3 = y1*z2 - y2*z1; >y3 = z1*x2 - x1*z2; >z3 = x1*y2 - x2*y1; >OuterProduct = {x3, y3, z3}; >How can I use any function included in Mathematica4 to >calculate out the result ? > matr1 = {x1, y1, z1}; matr2 = {x2, y2, z2}; Cross[matr1, matr2 ] {y1*z2 - y2*z1, x2*z1 - x1*z2, x1*y2 - x2*y1} Bob Hanlon