- #1
fluidistic
Gold Member
- 3,944
- 263
I haven't found a thread for latex tests, but I'm sure there's at least one of them. So feel free to move this post.
##\begin{array} \Phi (a, \theta ) = \sum _{l=0}^ \infty [A_l a^l + B_l a^{-(l+1)}] P_l (\cos \theta ) = V_a \\ \Phi (b, \theta ) = \sum _{l=0}^ \infty [A_l b^l + B_l b^{-(l+1)}] P_l (\cos \theta ) =V_b \end{array}##
I don't understand why the first lines does not read "Phi(a, theta)". I wrote \Phi (a, \theta ).
Anyone has an idea? It works for the second line.
##\begin{array} \Phi (a, \theta ) = \sum _{l=0}^ \infty [A_l a^l + B_l a^{-(l+1)}] P_l (\cos \theta ) = V_a \\ \Phi (b, \theta ) = \sum _{l=0}^ \infty [A_l b^l + B_l b^{-(l+1)}] P_l (\cos \theta ) =V_b \end{array}##
I don't understand why the first lines does not read "Phi(a, theta)". I wrote \Phi (a, \theta ).
Anyone has an idea? It works for the second line.