4 from sympy
import Derivative
, Symbol
, Function
, exp
, Rational
, log
, \
12 e
= relativity
.Rmn
.dd(0,0)
13 e
= e
.subs(relativity
.nu(r
), -relativity
.lam(r
))
14 print dsolve(e
, [relativity
.lam(r
)])
18 e
= relativity
.Rmn
.dd(1,1)
20 e
= e
.subs(relativity
.nu(r
), -relativity
.lam(r
))
21 print dsolve(e
, [relativity
.lam(r
)])
25 e
= relativity
.Rmn
.dd(2,2)
26 e
= e
.subs(relativity
.nu(r
), -relativity
.lam(r
))
27 print dsolve(e
, [relativity
.lam(r
)])
31 e
= relativity
.Rmn
.dd(3,3)
32 e
= e
.subs(relativity
.nu(r
), -relativity
.lam(r
))
33 print dsolve(e
, [relativity
.lam(r
)])