Differences

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--- playground:playground [2013/12/08 08:32] – external edit 127.0.0.1
+++ playground:playground [2013/12/08 13:43] – redox
@@ Line 1: / Line 1: @@
 ====== PlayGround ======
+°x_(1,2)=(-b+-sqrt(b^2-4a c))/(2a)°