To continue this thread, does anyone know of a website that's dedicated to the field of medical physics? I'm aware of the AAPM site, but I'm looking to join a group and/or forum that would expose me to professionals in this field. It's never too late to start rubbing elbows!
terry81: I enrolled in college at the age of 30, completed an associate's degree, and am now one year away from completing my bachelor's at the age of 35. I'm also considering a 2 year master's program after that. No, 26 is nowhere near too old!
Well, I found out about it the hard way: I had to undergo radiation therapy for Stage II testicular cancer in 2002. While on the table, I started blabbing with my therapists. Lo and behold, I realized that I needed to give a little back to the community that helped me in my time of need. So...
Wow. Daveb and Rocophysis: thanks for this thread and your contributions. I'm in my Junior year pursuing my undergrad physics degree. No one else in my classes are planning on anything in the health field, let alone medical physics/medical dosimetry. My physics department and instructors...
OK...things are slowly getting a little bit clearer. I understand that v_i\bullet v_j=\delta_{ij}=(v_{ix}*v_{jx})+(v_{iy}*v_{jy})+(v_{ik}*v_{jk})=(1*0)+(0*1)+(0*0)=0
I also read planetmath's description of permutations (something I am/was totally unfamiliar with)...
Thanks for the post. I kind of figured that this delta went something like this, but what confused me is when to use 1 and when to use 0. Let me explain:
Am I to understand that for every matrix of this delta, the outcome will always be the same? If I simply put in a 1 for 1=1, 2=2 and 3=3...
Hello all. Happy to have finally found this forum, sorry that it took so long!
I'm working through a Vector Algebra tutorial and I am having much difficulty with the concepts of Kronecker deltas and the Levi-Civita symbol. I can't fully grasp either of them intiutively.
From what I've been...