Changes

Test Page

85 bytes added, 15:29, 23 September 2015
from:1985 till:end shift:($dx,10) text:Mikhail~[[Gorbachev]]
</timeline>
 
 
<math>
The quadratic formula is $$-b \pm \sqrt{b^2 - 4ac} \over 2a$$ \bye
</math>