Tue, 06 Sep 2011 07:41:15 -0700 merged
huffman [Tue, 06 Sep 2011 07:41:15 -0700] rev 44747
merged
Mon, 05 Sep 2011 22:30:25 -0700 add lemmas about arctan;
huffman [Mon, 05 Sep 2011 22:30:25 -0700] rev 44746
add lemmas about arctan; simplify some proofs about arctan;
Mon, 05 Sep 2011 18:06:02 -0700 convert lemma cos_total to Isar-style proof
huffman [Mon, 05 Sep 2011 18:06:02 -0700] rev 44745
convert lemma cos_total to Isar-style proof
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip