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# initialise
kx=0.222222222222222
ky=0.151515151515152
kz=0.222222222222222
omega=sqrt(kx**2 + ky**2 + kz**2)
# without refinement
# solutions
p "wavetoyf77_periodic/phi.zl" u 8:($1==time&&$3==0?$9:0/0) w lp, "wavetoyf77_periodic_coarse/phi.zl" u (2*$8):(2*$1==time&&$3==0?$9:0/0) w lp, cos((kz*(0.3*x-9) + omega*(0.15*time))*pi) w l
# errors
p "wavetoyf77_periodic/phi.zl" u 8:($1==time&&$3==0?$9-cos((kz*(0.3*$8-9) + omega*(0.15*time))*pi):0/0) w lp, "wavetoyf77_periodic_coarse/phi.zl" u (2*$8):(2*$1==time&&$3==0?$9-cos((kz*(0.3*(2*$8)-9) + omega*(0.15*time))*pi):0/0) w lp
# with refinement
# solutions
p "wavetoyf77_periodic_rl2/phi.zl" u 8:($1==time&&$3==0?$9:0/0) w lp, "wavetoyf77_periodic_coarse_rl2/phi.zl" u (2*$8):(2*$1==time&&$3==0?$9:0/0) w lp, cos((kz*(0.15*x-9) + omega*(0.075*time))*pi) w l
# errors
p "wavetoyf77_periodic_rl2/phi.zl" u 8:($1==time&&$3==0?$9-cos((kz*(0.15*$8-9) + omega*(0.075*time))*pi):0/0) w lp, "wavetoyf77_periodic_coarse_rl2/phi.zl" u (2*$8):(2*$1==time&&$3==0?$9-cos((kz*(0.15*(2*$8)-9) + omega*(0.075*time))*pi):0/0) w lp
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