deletions | additions       diff --git a/brace_ell_ij__frac.tex b/brace_ell_ij__frac.tex  deleted file mode 100644  index c368305..0000000  --- a/brace_ell_ij__frac.tex  +++ /dev/null 
...
\[  \ell_{i,j} = \frac{( r^2 \delta_{i j} - r \hat{a}_{i j} + a_i a_j )}{( r^3  + a^2 r )} + \frac{\left[ ( a^2 r^2 - r^4 ) x_i + 2 r^3 ( \vec{a} \times  \vec{x} )_i - ( 3 r^2 + a^2 ) ( \vec{a} \cdot \vec{x} ) a_i \right]  r_{,j}}{( r^3 + a^2 r )^2}.  \]  diff --git a/layout.md b/layout.md  index 258504b..0e43b49 100644  --- a/layout.md  +++ b/layout.md 
...
The_most_difficult_p.tex  brace_H_i__fracHr.tex  Then_the_derivatives.tex  brace_ell_ij__frac.tex  which_leads_to_the.tex  eqnarray*_psi_04r___frac710560.tex  brace_g_mu_nu_.tex