Commit JT 092419

- added inf norm option

doc/src/Eqs/norm_inf.tex

@@ -0,0 +1,15 @@
+\documentclass[preview]{standalone}
+\usepackage{varwidth}
+\usepackage[utf8x]{inputenc}
+\usepackage{amsmath, amssymb, graphics, setspace}
+
+\begin{document}
+\begin{varwidth}{50in}
+  \begin{equation}
+    || \vec{F} ||_{inf} 
+    = {\rm max}\left(|F_1^1|, |F_1^2|, |F_1^3| \cdots, 
+    |F_N^1|, |F_N^2|, |F_N^3|\right)
+    \nonumber
+  \end{equation}
+\end{varwidth}
+\end{document}

doc/src/min_modify.txt

@@ -20,7 +20,8 @@ keyword = {dmax} or {line} or {norm} or {alpha_damp} or {discrete_factor}
     backtrack,quadratic,forcezero,spin_cubic,spin_none = style of linesearch to use 
   {norm} value = {two} or {max}
     two = Euclidean two-norm (length of 3N vector)
-    max = max value of across all 3-vectors
+    inf = max force component across all 3-vectors
+    max = max force norm across all 3-vectors
   {alpha_damp} value = damping
     damping = fictitious Gilbert damping for spin minimization (adim)
   {discrete_factor} value = factor
@@ -86,6 +87,11 @@ all atoms
 
 :c,image(Eqs/norm_max.jpg) 
 
+The {inf} norm takes the maximum component across the forces of
+all atoms in the system: 
+
+:c,image(Eqs/norm_inf.jpg) 
+
 For the min styles {spin}, {spin/cg} and {spin/lbfgs}, the force
 norm is replaced by the spin-torque norm.