Update to v1.5.HEADmaster

  The update to version 1.5 is rather substantial, and introduces some minor
  backward-incompatibilities:
    * The header "#!symbols" has been replaced by "#!virtual_fields"
    * Multiplying polynomials using the '*' symbol is no longer supported (or,
      rather, the symbolic capabilities of meankondo were enhanced, and the
      syntax has been changed).
    * 'meantools exp' has been removed (its functionality is now handled by
      other means)
    * 'meantoolds derive' has been replaced by 'meantools differentiate'

  * The symbolic capabilities were enhanced: polynomials can now be
    multiplied, added, exponentiated, and their logarithms can be taken
    directly in the configuration file.

  * The flow equation can now be processed after being computed using the
    various "#!postprocess_*" entries.

  * Deprecated kondo_preprocess.

  * Compute the mean using an LU decomposition if possible.

  * More detailed checks for syntax errors in configuration file.

  * Check that different '#!group' entries are indeed uncorrelated.

  * New flags in meankondo: '-p' and '-A'.

  * New tool: meantools expand.

  * Improve conversion to LaTeX using meantools-convert

  * Assign terms randomly to different threads.

  * Created vim files to implement syntax highlighting for configuration
    files.

  * Multiple bug fixes

1 files changed, 7 insertions, 7 deletions

diff --git a/src/meantools_deriv.c b/src/meantools_deriv.c
index b096380..3530808 100644
--- a/src/meantools_deriv.c
+++ b/src/meantools_deriv.c
@@ -1,5 +1,5 @@
 /*
-Copyright 2015 Ian Jauslin
+Copyright 2015-2022 Ian Jauslin
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -42,9 +42,9 @@ int tool_deriv_read_args(int argc, const char* argv[], Str_Array* str_args, Mean
   char* ptr;
 
   // defaults
-  // derive once
+  // differentiate once
   (*opts).deriv_derivs=1;
-  // derive with respect to all variables
+  // differentiate with respect to all variables
   (*opts).deriv_vars.length=-1;
   // do not chain
   (*opts).chain=0;
@@ -77,7 +77,7 @@ int tool_deriv_read_args(int argc, const char* argv[], Str_Array* str_args, Mean
     }
     // variables
     else if(flag==CP_FLAG_VARS){
-      // if the argument is "all" then derive wrt all variables
+      // if the argument is "all" then differentiate wrt all variables
       if(str_cmp((char*)argv[i],"all")){
 	(*opts).deriv_vars.length=-2;
       }
@@ -101,7 +101,7 @@ int tool_deriv_read_args(int argc, const char* argv[], Str_Array* str_args, Mean
 }
 
 
-// derive a flow equation
+// differentiate a flow equation
 int tool_deriv(Str_Array str_args, Meantools_Options opts){
   // index of the entry in the input file
   int arg_index;
@@ -158,7 +158,7 @@ int tool_deriv(Str_Array str_args, Meantools_Options opts){
       get_str_arg_title(str_args.strs[i], &arg_header);
       if (\
 	str_cmp(arg_header.str, "flow_equation")==0 &&\
-	str_cmp(arg_header.str, "symbols")==0 &&\
+	str_cmp(arg_header.str, "virtual_fields")==0 &&\
 	str_cmp(arg_header.str, "groups")==0 &&\
 	str_cmp(arg_header.str, "fields")==0 &&\
 	str_cmp(arg_header.str, "identities")==0 &&\
@@ -208,7 +208,7 @@ int flow_equation_derivative(int n, Int_Array variables, Grouped_Polynomial flow
     // free tmpflow
     free_Grouped_Polynomial(tmpflow);
 
-    // add the derived indices as variables for the next derivative
+    // add the differentiated indices as variables for the next derivative
     for(i=0;i<variables.length;i++){
       if(variables.values[i]>=0){
 	int_array_append((j+1)*DOFFSET+variables.values[i], &indices);