
Re: Calculating matrix permanent
Posted:
Jan 26, 2013 12:29 AM


On Jan 25, 9:13 pm, Virgil <vir...@ligriv.com> wrote: > In article > <3cd635d38c004c8fb5b3af9c45759...@v9g2000pbi.googlegroups.com>, > "Patrick D. Rockwell" <prockw...@thegrid.net> wrote: > > > > > > > I've read how to calculate the permanent of a matrix, > > but I found the notation hard to understand so I'd > > Like a practical demonstration. For 2 by 2 matrices > > It's easy. For example, the permanent of > > > 2 4 > > 9 6 > > > Is 2*6+4*9=36+12=48 > > > But what about > > > 5 3 1 > > 8 2 4 > > 7 9 6 > > > What is48 the permanent of the above matrix > > and how do you calculate it? > > What you have calculated for your 2 by 2 matrix is its DETERMINANT, > not its "permanent". >
No, I believe that the determinate is
2*64*9 = 24
> See http://en.wikipedia.org/wiki/Determinant > > For more, including how tevaluate a 3 by 3 determinant. > 
The above article showed me how to do th 2 by 2 case but I just couldn't understand The notation for the rest of it.

