diff --git a/doc/pair_buck_coul.html b/doc/pair_buck_coul.html
new file mode 100644
index 0000000000000000000000000000000000000000..bad45aeaff07c95ac06f6d5501b1e85a8c79249a
--- /dev/null
+++ b/doc/pair_buck_coul.html
@@ -0,0 +1,160 @@
+<HTML>
+<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
+</CENTER>
+
+
+
+
+
+
+<HR>
+
+<H3>pair_style buck/coul command
+</H3>
+<P><B>Syntax:</B>
+</P>
+<PRE>pair_style buck/coul flag_buck flag_coul cutoff (cutoff2)
+</PRE>
+<UL><LI>flag_buck = <I>long</I> or <I>cut</I>
+
+<PRE> <I>long</I> = use Kspace long-range summation for the dispersion term 1/r^6
+ <I>cut</I> = use a cutoff
+</PRE>
+<LI>flag_coul = <I>long</I> or <I>off</I>
+
+<PRE> <I>long</I> = use Kspace long-range summation for the Coulombic term 1/r
+ <I>off</I> = omit the Coulombic term
+</PRE>
+<LI>cutoff = global cutoff for Buckingnham (and Coulombic if only 1 cutoff) (distance units)
+
+<LI>cutoff2 = global cutoff for Coulombic (optional) (distance units)
+</UL>
+<P><B>Examples:</B>
+</P>
+<PRE>pair_style buck/coul cut off 2.5
+pair_style buck/coul cut long 2.5 4.0
+pair_style buck/coul long long 2.5 4.0
+pair_coeff * * 1 1
+pair_coeff 1 1 1 3 4
+</PRE>
+<P><B>Description:</B>
+</P>
+<P>The <I>buck/coul</I> style computes a Buckingham potential (exp/6 instead of
+Lennard-Jones 12/6) and Coulombic potential, given by
+</P>
+<CENTER><IMG SRC = "Eqs/pair_buck.jpg">
+</CENTER>
+<CENTER><IMG SRC = "Eqs/pair_coulomb.jpg">
+</CENTER>
+<P>Rc is the cutoff. If one cutoff is specified in the pair_style
+command, it is used for both the Buckingham and Coulombic terms. If
+two cutoffs are specified, they are used as cutoffs for the Buckingham
+and Coulombic terms respectively.
+</P>
+<P>The purpose of this pair style is to capture long-range interactions
+resulting from both attractive 1/r^6 Buckingham and Coulombic 1/r
+interactions. This is done by use of the <I>flag_lj</I> and <I>flag_coul</I>
+settings. The "<A HREF = "#Ismail">Ismail</A> paper has more details on when it is
+appropriate to include long-range 1/r^6 interactions, using this
+potential.
+</P>
+<P>If <I>flag_lj</I> is set to <I>long</I>, no cutoff is used on the Buckingham
+1/r^6 dispersion term. The long-range portion is calculated by using
+the <A HREF = "kspace_style.html">kspace_style ewald/n</A> command. The specified
+Buckingham cutoff then determines which portion of the Buckingham
+interactions are computed directly by the pair potential versus which
+part is computed in reciprocal space via the Kspace style. If
+<I>flag_lj</I> is set to <I>cut</I>, the Buckingham interactions are simply
+cutoff, as with <A HREF = "pair_buck.html">pair_style buck</A>.
+</P>
+<P>If <I>flag_coul</I> is set to <I>long</I>, no cutoff is used on the Coulombic
+interactions. The long-range portion is calculated by using any
+style, including <I>ewald/n</I> of the <A HREF = "kspace_style.html">kspace_style</A>
+command. Note that if <I>flag_buck</I> is also set to long, then only the
+<I>ewald/n</I> Kspace style can perform the long-range calculations for
+both the Buckingham and Coulombic interactions. If <I>flag_coul</I> is set
+to <I>off</I>, Coulombic interactions are not computed.
+</P>
+<P>The following coefficients must be defined for each pair of atoms
+types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples
+above, or in the data file or restart files read by the
+<A HREF = "read_data.html">read_data</A> or <A HREF = "read_restart.html">read_restart</A>
+commands:
+</P>
+<UL><LI>A (energy units)
+<LI>rho (distance units)
+<LI>C (energy-distance^6 units)
+<LI>cutoff (distance units)
+<LI>cutoff2 (distance units)
+</UL>
+<P>The second coefficient, rho, must be greater than zero.
+</P>
+<P>The latter 2 coefficients are optional. If not specified, the global
+Buckingham and Coulombic cutoffs specified in the pair_style command
+are used. If only one cutoff is specified, it is used as the cutoff
+for both Buckingham and Coulombic interactions for this type pair. If
+both coefficients are specified, they are used as the Buckingham and
+Coulombic cutoffs for this type pair. Note that if you are using
+<I>flag_buck</I> set to <I>long</I>, you cannot specify a Buckingham cutoff for
+an atom type pair, since only one global Buckingham cutoff is allowed.
+Similarly, if you are using <I>flag_coul</I> set to <I>long</I>, you cannot
+specify a Coulombic cutoff for an atom type pair, since only one
+global Coulombic cutoff is allowed.
+</P>
+<HR>
+
+<P><B>Mixing, shift, table, tail correction, per-atom energy/stress,
+restart, and rRESPA info</B>:
+</P>
+<P>This pair styles does not support mixing. Thus, coefficients for all
+I,J pairs must be specified explicitly.
+</P>
+<P>This pair style supports the <A HREF = "pair_modify.html">pair_modify</A> shift
+option for the energy of the exp() and 1/r^6 portion of the pair
+interaction, assuming <I>flag_buck</I> is <I>cut</I>.
+</P>
+<P>This pair style does not support the <A HREF = "pair_modify.html">pair_modify</A>
+shift option for the energy of the Buckingham portion of the pair
+interaction.
+</P>
+<P>This pair style does not support the <A HREF = "pair_modify.html">pair_modify</A>
+table option since a tabulation capability has not yet been added to
+this potential.
+</P>
+<P>This pair style can calculate per-atom energy and stress, as used by
+the <A HREF = "compute_epair_atom.html">compute epair/atom</A>, <A HREF = "compute_stress_atom.html">compute
+stress/atom</A>, and <A HREF = "dump.html">dump custom</A>
+commands.
+</P>
+<P>This pair style write its information to <A HREF = "restart.html">binary restart
+files</A>, so pair_style and pair_coeff commands do not need
+to be specified in an input script that reads a restart file.
+</P>
+<P>This pair style supports the use of the <I>inner</I>, <I>middle</I>, and <I>outer</I>
+keywords of the <A HREF = "run_style.html">run_style respa</A> command, meaning the
+pairwise forces can be partitioned by distance at different levels of
+the rRESPA hierarchy. See the <A HREF = "run_style.html">run_style</A> command for
+details.
+</P>
+<HR>
+
+<P><B>Restrictions:</B>
+</P>
+<P>This style is part of the "user-ewaldn" package. It is only enabled
+if LAMMPS was built with that package. See the <A HREF = "Section_start.html#2_3">Making
+LAMMPS</A> section for more info.
+</P>
+<P><B>Related commands:</B>
+</P>
+<P><A HREF = "pair_coeff.html">pair_coeff</A>
+</P>
+<P><B>Default:</B> none
+</P>
+<HR>
+
+<A NAME = "Ismail"></A>
+
+<P><B>(Ismail)</B> Ismail, Tsige, In 't Veld, Grest, Molecular Physics
+(accepted) (2007).
+</P>
+</HTML>
diff --git a/doc/pair_buck_coul.txt b/doc/pair_buck_coul.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2245fd530b275f7044740de82e24447b1f2daa8c
--- /dev/null
+++ b/doc/pair_buck_coul.txt
@@ -0,0 +1,149 @@
+"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
+
+:link(lws,http://lammps.sandia.gov)
+:link(ld,Manual.html)
+:link(lc,Section_commands.html#comm)
+
+:line
+
+pair_style buck/coul command :h3
+
+[Syntax:]
+
+pair_style buck/coul flag_buck flag_coul cutoff (cutoff2) :pre
+
+flag_buck = {long} or {cut} :ulb,l
+ {long} = use Kspace long-range summation for the dispersion term 1/r^6
+ {cut} = use a cutoff :pre
+flag_coul = {long} or {off} :l
+ {long} = use Kspace long-range summation for the Coulombic term 1/r
+ {off} = omit the Coulombic term :pre
+cutoff = global cutoff for Buckingnham (and Coulombic if only 1 cutoff) (distance units) :l
+cutoff2 = global cutoff for Coulombic (optional) (distance units) :l,ule
+
+[Examples:]
+
+pair_style buck/coul cut off 2.5
+pair_style buck/coul cut long 2.5 4.0
+pair_style buck/coul long long 2.5 4.0
+pair_coeff * * 1 1
+pair_coeff 1 1 1 3 4 :pre
+
+[Description:]
+
+The {buck/coul} style computes a Buckingham potential (exp/6 instead of
+Lennard-Jones 12/6) and Coulombic potential, given by
+
+:c,image(Eqs/pair_buck.jpg)
+
+:c,image(Eqs/pair_coulomb.jpg)
+
+Rc is the cutoff. If one cutoff is specified in the pair_style
+command, it is used for both the Buckingham and Coulombic terms. If
+two cutoffs are specified, they are used as cutoffs for the Buckingham
+and Coulombic terms respectively.
+
+The purpose of this pair style is to capture long-range interactions
+resulting from both attractive 1/r^6 Buckingham and Coulombic 1/r
+interactions. This is done by use of the {flag_lj} and {flag_coul}
+settings. The ""Ismail"_#Ismail paper has more details on when it is
+appropriate to include long-range 1/r^6 interactions, using this
+potential.
+
+If {flag_lj} is set to {long}, no cutoff is used on the Buckingham
+1/r^6 dispersion term. The long-range portion is calculated by using
+the "kspace_style ewald/n"_kspace_style.html command. The specified
+Buckingham cutoff then determines which portion of the Buckingham
+interactions are computed directly by the pair potential versus which
+part is computed in reciprocal space via the Kspace style. If
+{flag_lj} is set to {cut}, the Buckingham interactions are simply
+cutoff, as with "pair_style buck"_pair_buck.html.
+
+If {flag_coul} is set to {long}, no cutoff is used on the Coulombic
+interactions. The long-range portion is calculated by using any
+style, including {ewald/n} of the "kspace_style"_kspace_style.html
+command. Note that if {flag_buck} is also set to long, then only the
+{ewald/n} Kspace style can perform the long-range calculations for
+both the Buckingham and Coulombic interactions. If {flag_coul} is set
+to {off}, Coulombic interactions are not computed.
+
+The following coefficients must be defined for each pair of atoms
+types via the "pair_coeff"_pair_coeff.html command as in the examples
+above, or in the data file or restart files read by the
+"read_data"_read_data.html or "read_restart"_read_restart.html
+commands:
+
+A (energy units)
+rho (distance units)
+C (energy-distance^6 units)
+cutoff (distance units)
+cutoff2 (distance units) :ul
+
+The second coefficient, rho, must be greater than zero.
+
+The latter 2 coefficients are optional. If not specified, the global
+Buckingham and Coulombic cutoffs specified in the pair_style command
+are used. If only one cutoff is specified, it is used as the cutoff
+for both Buckingham and Coulombic interactions for this type pair. If
+both coefficients are specified, they are used as the Buckingham and
+Coulombic cutoffs for this type pair. Note that if you are using
+{flag_buck} set to {long}, you cannot specify a Buckingham cutoff for
+an atom type pair, since only one global Buckingham cutoff is allowed.
+Similarly, if you are using {flag_coul} set to {long}, you cannot
+specify a Coulombic cutoff for an atom type pair, since only one
+global Coulombic cutoff is allowed.
+
+:line
+
+[Mixing, shift, table, tail correction, per-atom energy/stress,
+restart, and rRESPA info]:
+
+This pair styles does not support mixing. Thus, coefficients for all
+I,J pairs must be specified explicitly.
+
+This pair style supports the "pair_modify"_pair_modify.html shift
+option for the energy of the exp() and 1/r^6 portion of the pair
+interaction, assuming {flag_buck} is {cut}.
+
+This pair style does not support the "pair_modify"_pair_modify.html
+shift option for the energy of the Buckingham portion of the pair
+interaction.
+
+This pair style does not support the "pair_modify"_pair_modify.html
+table option since a tabulation capability has not yet been added to
+this potential.
+
+This pair style can calculate per-atom energy and stress, as used by
+the "compute epair/atom"_compute_epair_atom.html, "compute
+stress/atom"_compute_stress_atom.html, and "dump custom"_dump.html
+commands.
+
+This pair style write its information to "binary restart
+files"_restart.html, so pair_style and pair_coeff commands do not need
+to be specified in an input script that reads a restart file.
+
+This pair style supports the use of the {inner}, {middle}, and {outer}
+keywords of the "run_style respa"_run_style.html command, meaning the
+pairwise forces can be partitioned by distance at different levels of
+the rRESPA hierarchy. See the "run_style"_run_style.html command for
+details.
+
+:line
+
+[Restrictions:]
+
+This style is part of the "user-ewaldn" package. It is only enabled
+if LAMMPS was built with that package. See the "Making
+LAMMPS"_Section_start.html#2_3 section for more info.
+
+[Related commands:]
+
+"pair_coeff"_pair_coeff.html
+
+[Default:] none
+
+:line
+
+:link(Ismail)
+[(Ismail)] Ismail, Tsige, In 't Veld, Grest, Molecular Physics
+(accepted) (2007).
diff --git a/doc/pair_lj_coul.html b/doc/pair_lj_coul.html
new file mode 100644
index 0000000000000000000000000000000000000000..a7e9b684aa24e8b29caf270ca156538c682166de
--- /dev/null
+++ b/doc/pair_lj_coul.html
@@ -0,0 +1,169 @@
+<HTML>
+<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
+</CENTER>
+
+
+
+
+
+
+<HR>
+
+<H3>pair_style lj/coul command
+</H3>
+<P><B>Syntax:</B>
+</P>
+<PRE>pair_style lj/coul flag_lj flag_coul cutoff (cutoff2)
+</PRE>
+<UL><LI>flag_lj = <I>long</I> or <I>cut</I>
+
+<PRE> <I>long</I> = use Kspace long-range summation for the dispersion term 1/r^6
+ <I>cut</I> = use a cutoff
+</PRE>
+<LI>flag_coul = <I>long</I> or <I>off</I>
+
+<PRE> <I>long</I> = use Kspace long-range summation for the Coulombic term 1/r
+ <I>off</I> = omit the Coulombic term
+</PRE>
+<LI>cutoff = global cutoff for LJ (and Coulombic if only 1 cutoff) (distance units)
+
+<LI>cutoff2 = global cutoff for Coulombic (optional) (distance units)
+</UL>
+<P><B>Examples:</B>
+</P>
+<PRE>pair_style lj/coul cut off 2.5
+pair_style lj/coul cut long 2.5 4.0
+pair_style lj/coul long long 2.5 4.0
+pair_coeff * * 1 1
+pair_coeff 1 1 1 3 4
+</PRE>
+<P><B>Description:</B>
+</P>
+<P>The <I>lj/coul</I> style computes the standard 12/6 Lennard-Jones and
+Coulombic potentials, given by
+</P>
+<CENTER><IMG SRC = "Eqs/pair_lj.jpg">
+</CENTER>
+<CENTER><IMG SRC = "Eqs/pair_coulomb.jpg">
+</CENTER>
+<P>where C is an energy-conversion constant, Qi and Qj are the charges on
+the 2 atoms, epsilon is the dielectric constant which can be set by
+the <A HREF = "dielectric.html">dielectric</A> command, and Rc is the cutoff. If
+one cutoff is specified in the pair_style command, it is used for both
+the LJ and Coulombic terms. If two cutoffs are specified, they are
+used as cutoffs for the LJ and Coulombic terms respectively.
+</P>
+<P>The purpose of this pair style is to capture long-range interactions
+resulting from both attractive 1/r^6 Lennard-Jones and Coulombic 1/r
+interactions. This is done by use of the <I>flag_lj</I> and <I>flag_coul</I>
+settings. The <A HREF = "#Veld">In 't Veld</A> paper has more details on when it is
+appropriate to include long-range 1/r^6 interactions, using this
+potential.
+</P>
+<P>If <I>flag_lj</I> is set to <I>long</I>, no cutoff is used on the LJ 1/r^6
+dispersion term. The long-range portion is calculated by using the
+<A HREF = "kspace_style.html">kspace_style ewald/n</A> command. The specified LJ
+cutoff then determines which portion of the LJ interactions are
+computed directly by the pair potential versus which part is computed
+in reciprocal space via the Kspace style. If <I>flag_lj</I> is set to
+<I>cut</I>, the LJ interactions are simply cutoff, as with <A HREF = "pair_lj.html">pair_style
+lj/cut</A>.
+</P>
+<P>If <I>flag_coul</I> is set to <I>long</I>, no cutoff is used on the Coulombic
+interactions. The long-range portion is calculated by using any
+style, including <I>ewald/n</I> of the <A HREF = "kspace_style.html">kspace_style</A>
+command. Note that if <I>flag_lj</I> is also set to long, then only the
+<I>ewald/n</I> Kspace style can perform the long-range calculations for
+both the LJ and Coulombic interactions. If <I>flag_coul</I> is set to
+<I>off</I>, Coulombic interactions are not computed.
+</P>
+<P>The following coefficients must be defined for each pair of atoms
+types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples
+above, or in the data file or restart files read by the
+<A HREF = "read_data.html">read_data</A> or <A HREF = "read_restart.html">read_restart</A>
+commands, or by mixing as described below:
+</P>
+<UL><LI>epsilon (energy units)
+<LI>sigma (distance units)
+<LI>cutoff1 (distance units)
+<LI>cutoff2 (distance units)
+</UL>
+<P>Note that sigma is defined in the LJ formula as the zero-crossing
+distance for the potential, not as the energy minimum at 2^(1/6)
+sigma.
+</P>
+<P>The latter 2 coefficients are optional. If not specified, the global
+LJ and Coulombic cutoffs specified in the pair_style command are used.
+If only one cutoff is specified, it is used as the cutoff for both LJ
+and Coulombic interactions for this type pair. If both coefficients
+are specified, they are used as the LJ and Coulombic cutoffs for this
+type pair. Note that if you are using <I>flag_lj</I> set to <I>long</I>, you
+cannot specify a LJ cutoff for an atom type pair, since only one
+global LJ cutoff is allowed. Similarly, if you are using <I>flag_coul</I>
+set to <I>long</I>, you cannot specify a Coulombic cutoff for an atom type
+pair, since only one global Coulombic cutoff is allowed.
+</P>
+<HR>
+
+<P><B>Mixing, shift, table, tail correction, per-atom energy/stress,
+restart, rRESPA info</B>:
+</P>
+<P>For atom type pairs I,J and I != J, the epsilon and sigma coefficients
+and cutoff distance for all of the lj/cut pair styles can be mixed.
+The default mix value is <I>geometric</I>. See the "pair_modify" command
+for details.
+</P>
+<P>This pair style supports the <A HREF = "pair_modify.html">pair_modify</A> shift
+option for the energy of the Lennard-Jones portion of the pair
+interaction, assuming <I>flag_lj</I> is <I>cut</I>.
+</P>
+<P>This pair style supports the <A HREF = "pair_modify.html">pair_modify</A> table
+option since it can tabulate the short-range portion of the long-range
+Coulombic interaction.
+</P>
+<P>This pair styles supports the <A HREF = "pair_modify.html">pair_modify</A> tail
+option for adding a long-range tail correction to the Lennard-Jones
+portion of the energy and pressure of the pair interaction, assuming
+<I>flag_lj</I> is <I>cut</I>.
+</P>
+<P>This pair style can calculate per-atom energy and stress, as used by
+the <A HREF = "compute_epair_atom.html">compute epair/atom</A>, <A HREF = "compute_stress_atom.html">compute
+stress/atom</A>, and <A HREF = "dump.html">dump custom</A>
+commands.
+</P>
+<P>This pair style writes its information to <A HREF = "restart.html">binary restart
+files</A>, so pair_style and pair_coeff commands do not need
+to be specified in an input script that reads a restart file.
+</P>
+<P>This pair style supports the use of the <I>inner</I>, <I>middle</I>, and <I>outer</I>
+keywords of the <A HREF = "run_style.html">run_style respa</A> command, meaning the
+pairwise forces can be partitioned by distance at different levels of
+the rRESPA hierarchy. See the <A HREF = "run_style.html">run_style</A> command for
+details.
+</P>
+<HR>
+
+<P><B>Restrictions:</B>
+</P>
+<P>This style is part of the "user-ewaldn" package. It is only enabled
+if LAMMPS was built with that package. See the <A HREF = "Section_start.html#2_3">Making
+LAMMPS</A> section for more info.
+</P>
+<P>On some 64-bit machines, compiling with -O3 appears to break the
+Coulombic tabling option used by the <I>lj/coul</I> style. See the
+"Additional build tips" section of the Making LAMMPS documentation
+pages for workarounds on this issue.
+</P>
+<P><B>Related commands:</B>
+</P>
+<P><A HREF = "pair_coeff.html">pair_coeff</A>
+</P>
+<P><B>Default:</B> none
+</P>
+<HR>
+
+<A NAME = "Veld"></A>
+
+<P><B>(In 't Veld)</B> In 't Veld, Ismail, Grest, J Chem Phys (accepted) (2007).
+</P>
+</HTML>
diff --git a/doc/pair_lj_coul.txt b/doc/pair_lj_coul.txt
new file mode 100644
index 0000000000000000000000000000000000000000..12e1629b3d87c6fd9e40b0a2b91ce8fa86d9e020
--- /dev/null
+++ b/doc/pair_lj_coul.txt
@@ -0,0 +1,158 @@
+"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
+
+:link(lws,http://lammps.sandia.gov)
+:link(ld,Manual.html)
+:link(lc,Section_commands.html#comm)
+
+:line
+
+pair_style lj/coul command :h3
+
+[Syntax:]
+
+pair_style lj/coul flag_lj flag_coul cutoff (cutoff2) :pre
+
+flag_lj = {long} or {cut} :ulb,l
+ {long} = use Kspace long-range summation for the dispersion term 1/r^6
+ {cut} = use a cutoff :pre
+flag_coul = {long} or {off} :l
+ {long} = use Kspace long-range summation for the Coulombic term 1/r
+ {off} = omit the Coulombic term :pre
+cutoff = global cutoff for LJ (and Coulombic if only 1 cutoff) (distance units) :l
+cutoff2 = global cutoff for Coulombic (optional) (distance units) :l,ule
+
+[Examples:]
+
+pair_style lj/coul cut off 2.5
+pair_style lj/coul cut long 2.5 4.0
+pair_style lj/coul long long 2.5 4.0
+pair_coeff * * 1 1
+pair_coeff 1 1 1 3 4 :pre
+
+[Description:]
+
+The {lj/coul} style computes the standard 12/6 Lennard-Jones and
+Coulombic potentials, given by
+
+:c,image(Eqs/pair_lj.jpg)
+
+:c,image(Eqs/pair_coulomb.jpg)
+
+where C is an energy-conversion constant, Qi and Qj are the charges on
+the 2 atoms, epsilon is the dielectric constant which can be set by
+the "dielectric"_dielectric.html command, and Rc is the cutoff. If
+one cutoff is specified in the pair_style command, it is used for both
+the LJ and Coulombic terms. If two cutoffs are specified, they are
+used as cutoffs for the LJ and Coulombic terms respectively.
+
+The purpose of this pair style is to capture long-range interactions
+resulting from both attractive 1/r^6 Lennard-Jones and Coulombic 1/r
+interactions. This is done by use of the {flag_lj} and {flag_coul}
+settings. The "In 't Veld"_#Veld paper has more details on when it is
+appropriate to include long-range 1/r^6 interactions, using this
+potential.
+
+If {flag_lj} is set to {long}, no cutoff is used on the LJ 1/r^6
+dispersion term. The long-range portion is calculated by using the
+"kspace_style ewald/n"_kspace_style.html command. The specified LJ
+cutoff then determines which portion of the LJ interactions are
+computed directly by the pair potential versus which part is computed
+in reciprocal space via the Kspace style. If {flag_lj} is set to
+{cut}, the LJ interactions are simply cutoff, as with "pair_style
+lj/cut"_pair_lj.html.
+
+If {flag_coul} is set to {long}, no cutoff is used on the Coulombic
+interactions. The long-range portion is calculated by using any
+style, including {ewald/n} of the "kspace_style"_kspace_style.html
+command. Note that if {flag_lj} is also set to long, then only the
+{ewald/n} Kspace style can perform the long-range calculations for
+both the LJ and Coulombic interactions. If {flag_coul} is set to
+{off}, Coulombic interactions are not computed.
+
+The following coefficients must be defined for each pair of atoms
+types via the "pair_coeff"_pair_coeff.html command as in the examples
+above, or in the data file or restart files read by the
+"read_data"_read_data.html or "read_restart"_read_restart.html
+commands, or by mixing as described below:
+
+epsilon (energy units)
+sigma (distance units)
+cutoff1 (distance units)
+cutoff2 (distance units) :ul
+
+Note that sigma is defined in the LJ formula as the zero-crossing
+distance for the potential, not as the energy minimum at 2^(1/6)
+sigma.
+
+The latter 2 coefficients are optional. If not specified, the global
+LJ and Coulombic cutoffs specified in the pair_style command are used.
+If only one cutoff is specified, it is used as the cutoff for both LJ
+and Coulombic interactions for this type pair. If both coefficients
+are specified, they are used as the LJ and Coulombic cutoffs for this
+type pair. Note that if you are using {flag_lj} set to {long}, you
+cannot specify a LJ cutoff for an atom type pair, since only one
+global LJ cutoff is allowed. Similarly, if you are using {flag_coul}
+set to {long}, you cannot specify a Coulombic cutoff for an atom type
+pair, since only one global Coulombic cutoff is allowed.
+
+:line
+
+[Mixing, shift, table, tail correction, per-atom energy/stress,
+restart, rRESPA info]:
+
+For atom type pairs I,J and I != J, the epsilon and sigma coefficients
+and cutoff distance for all of the lj/cut pair styles can be mixed.
+The default mix value is {geometric}. See the "pair_modify" command
+for details.
+
+This pair style supports the "pair_modify"_pair_modify.html shift
+option for the energy of the Lennard-Jones portion of the pair
+interaction, assuming {flag_lj} is {cut}.
+
+This pair style supports the "pair_modify"_pair_modify.html table
+option since it can tabulate the short-range portion of the long-range
+Coulombic interaction.
+
+This pair styles supports the "pair_modify"_pair_modify.html tail
+option for adding a long-range tail correction to the Lennard-Jones
+portion of the energy and pressure of the pair interaction, assuming
+{flag_lj} is {cut}.
+
+This pair style can calculate per-atom energy and stress, as used by
+the "compute epair/atom"_compute_epair_atom.html, "compute
+stress/atom"_compute_stress_atom.html, and "dump custom"_dump.html
+commands.
+
+This pair style writes its information to "binary restart
+files"_restart.html, so pair_style and pair_coeff commands do not need
+to be specified in an input script that reads a restart file.
+
+This pair style supports the use of the {inner}, {middle}, and {outer}
+keywords of the "run_style respa"_run_style.html command, meaning the
+pairwise forces can be partitioned by distance at different levels of
+the rRESPA hierarchy. See the "run_style"_run_style.html command for
+details.
+
+:line
+
+[Restrictions:]
+
+This style is part of the "user-ewaldn" package. It is only enabled
+if LAMMPS was built with that package. See the "Making
+LAMMPS"_Section_start.html#2_3 section for more info.
+
+On some 64-bit machines, compiling with -O3 appears to break the
+Coulombic tabling option used by the {lj/coul} style. See the
+"Additional build tips" section of the Making LAMMPS documentation
+pages for workarounds on this issue.
+
+[Related commands:]
+
+"pair_coeff"_pair_coeff.html
+
+[Default:] none
+
+:line
+
+:link(Veld)
+[(In 't Veld)] In 't Veld, Ismail, Grest, J Chem Phys (accepted) (2007).