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Re: [mg4253] Help: Column/Row Vector
Posted:
Jun 28, 1996 9:47 AM


On Sun, 23 Jun 1996 khinast@nld.chee.uh.edu wrote:
> I have two vectors x=(x1,x2) and y = (y1,y1). How can I persuade Mathematica > that e.g. x is a column vector and y is a row vector, which is kind of > important for their multiplication .
Mma in a sense treats the first level of parentheses as rows. Therefore y is already a row vector. To make x a column vector, write it as x = {{x1},{x2}}
Then y x = {{y1,x1},{y2,x2}} as expected.
 Dr. Richard L. Bowman Dept. of Physics email: rbowman@bridgewater.edu Bridgewater College phone: 5408285441 Bridgewater, VA 22812 FAX: 5408285479 "http://www.bridgewater.edu/departments/physics/physics.html" 



