I have a code that I am using to display a matrix for heat transfer, but I keep getting the error ??? Attempted to access A(1,-4); index must be a positive integer or logical. I have tried several things, but I am all out of ideas. I am an intermediate Matlab user. Any help would be great. Here is my code: L = input('Enter the length '); H = input('Enter the height '); XG = input
Pmb schrieb: "Arnold Neumaier" <Arnold.Neumaier@univie.ac.at> wrote in message news:47D6BBAD.5050807@univie.ac.at... Pmb schrieb: I was wondering if anyone knows of systems for which the Hamiltonian is not equal to the total energy? This is the case in any diffeomorphism invariant theory; ... I don't understand. Since a "diffeomorphism" is a map between manifolds
Dave Schaack wrote: "Farsang" <youzpalang@netscape.net> wrote in message news:1180623982.886736.10690@o5g2000hsb.googlegroups.com... 2-Your argument about NA comes from " h1 x NA1 = h2 x NA2 ", the optical invariant, where h1 and h2 are object and image sizes, respectively. Isn't this equation valid only for paraxial case (i.e. NAs defined by sines of half angles) and
Dave Schaack wrote: "Farsang" <youzpalang@netscape.net> wrote in message news:1180623982.886736.10690@o5g2000hsb.googlegroups.com... 2-Your argument about NA comes from " h1 x NA1 = h2 x NA2 ", the optical invariant, where h1 and h2 are object and image sizes, respectively. Isn't this equation valid only for paraxial case (i.e. NAs defined by sines of half angles) and
On 22 May 2007 10:45:13 -0700, blackhead <larryharson@softhome.net> wrote: On May 22, 3:14 pm, John C. Polasek <jpola...@cfl.rr.com> wrote: On 22 May 2007 06:03:39 -0700, blackhead <larryhar...@softhome.net> wrote: On 21 May, 21:05, John C. Polasek <jpola...@cfl.rr.com> wrote: On 21 May 2007 09:02:08 -0700, blackhead <larryhar...@softhome.net> wrote
