Electrostatic problem with space charge - 4 quadrants 4 nC/cm^3 charge density ; Copyright 2004 by the University of California. ; Unauthorized commercial use is prohibited. ® kprob=0, ! Poisson or Pandira problem dx=0.02 ! Mesh interval at origin icylin=0, ! Cartesian coordinates nbsup=0, ! Dirichlet boundary condition all edges nbslo=0, nbslf=0, nbsrt=0, ibound=0, ! Dirichlet boundary condition on internal bounds xreg1=.75 ! X line region where mesh interval doubles yreg1=.75 ! Y line region where mesh interval doubles xjfact=0.0 & ! Electrostatic problem &po x=4,y=0 & &po nt=2,r=4.,theta= 90,x0=0,y0=0 & &po nt=2,r=4.,theta=180,x0=0,y0=0 & &po nt=2,r=4.,theta=270,x0=0,y0=0 & &po nt=2,r=4.,theta=360,x0=0,y0=0 & ® mat=1,den=4.d-9 & ! DEN is charge density in Coul/cm^3 &po x=0.5,y=0 & &po nt=2,r=0.5,theta= 90,x0=0,y0=0 & &po nt=2,r=0.5,theta=180,x0=0,y0=0 & &po nt=2,r=0.5,theta=270,x0=0,y0=0 & &po nt=2,r=0.5,theta=360,x0=0,y0=0 &