Merge pull request #55 from upavloff/patch-3

Typo in Lagrange's interpolation

chapters/statements-moonmath.tex

@@ -1323,7 +1323,7 @@ \subsubsection{QAP representation} To understand what Quadratic Arithmetic Progr
 
 To compute $A_2$ we note that the set $S_{A_2}$ in our version of Lagrange's interpolation  is given by $S_{A_2}=\{(m_1,a^1_2), (m_2,a_2^2)\} = \{(5,1), (7,0)\}$. Using this set we get:
 \begin{align*}
-A_2(x) & = a^1_2\cdot(\frac{x-m_2}{m_1-m_2}) + a^2_2\cdot(\frac{x-m_1}{m_2-m_2})
+A_2(x) & = a^1_2\cdot(\frac{x-m_2}{m_1-m_2}) + a^2_2\cdot(\frac{x-m_1}{m_2-m_1})
       = 1\cdot(\frac{x-7}{5-7}) + 0\cdot(\frac{x-5}{7-5}) \\
     & = \frac{x-7}{-2}
       = \frac{x-7}{11} & \text{\# } 11^{-1}=6 \\