- ex Ex_p = e.subs(lst(mu == 1, nu == 0)).normal();
- ex Ey_p = e.subs(lst(mu == 2, nu == 0)).normal();
- ex Ez_p = e.subs(lst(mu == 3, nu == 0)).normal();
- ex Bx_p = e.subs(lst(mu == 3, nu == 2)).normal();
- ex By_p = e.subs(lst(mu == 1, nu == 3)).normal();
- ex Bz_p = e.subs(lst(mu == 2, nu == 1)).normal();
+ ex Ex_p = e.subs(lst{mu == 1, nu == 0}).normal();
+ ex Ey_p = e.subs(lst{mu == 2, nu == 0}).normal();
+ ex Ez_p = e.subs(lst{mu == 3, nu == 0}).normal();
+ ex Bx_p = e.subs(lst{mu == 3, nu == 2}).normal();
+ ex By_p = e.subs(lst{mu == 1, nu == 3}).normal();
+ ex Bz_p = e.subs(lst{mu == 2, nu == 1}).normal();