sashwattanay
diff --git a/‎analytic_phi_2PN_et0_6.nb
+1,598 b/‎analytic_phi_2PN_et0_6.nb
+1,598
diff --git a/‎analytic_t_time_2PN_et_6.nb
+1,535 b/‎analytic_t_time_2PN_et_6.nb
+1,535
diff --git a/‎et/2PN_et_1.nb
+968 b/‎et/2PN_et_1.nb
+968
diff --git a/‎et/2PN_et_3.nb
+1,442 b/‎et/2PN_et_3.nb
+1,442
diff --git a/‎et/2PN_et_5.nb
+3,667 b/‎et/2PN_et_5.nb
+3,667
diff --git a/‎et/readme.txt
+9 b/‎et/readme.txt
+9
@@ -0,0 +1,9 @@
+These files show how to derive Eq. A5 of the paper.
+
+
+We move towards 2PN_et_1.nb >> 2PN_et_3.nb >> 2PN_et_5.nb, we gradually obtain expressions of e_t which is more and
+more accurate in orders of e_0. The outputs of the lower order file serve as the inputs to the next higher order
+file.
+
+
+Out of 2PN_et_1.nb serves as input to 2PN_et_3.nb.