6 files changed, 13 insertions, 17 deletions
diff --git a/models/beta1d.hpp b/models/beta1d.hpp
index d6468b4..c3a5469 100644
--- a/models/beta1d.hpp
+++ b/models/beta1d.hpp
@@ -43,8 +43,7 @@ namespace opt_utilities
 
     std::string do_to_string()const
     {
-      return "Beta model\n"
-	"S=S0*(1+(r/rc)^2)^(-3*beta+0.5)\n";
+      return "<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\" class=\"equation\"><mi>f</mi><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-punc\">;</mo><msub><mrow><mi>S</mi></mrow><mrow><mn>0</mn></mrow></msub><mo class=\"MathClass-punc\">,</mo><mi>β</mi><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>r</mi></mrow><mrow><mi>c</mi></mrow></msub><mo class=\"MathClass-punc\">,</mo><mi>b</mi><mi>k</mi><mi>g</mi></mrow><mo class=\"MathClass-close\">)</mo></mrow> <mo class=\"MathClass-rel\">=</mo> <mi>S</mi><mn>0</mn> <mo class=\"MathClass-bin\">∗</mo><msup><mrow><mfenced separators=\"\" open=\"(\" close=\")\"><mrow><mn>1</mn> <mo class=\"MathClass-bin\">+</mo><msup><mrow> <mfenced separators=\"\" open=\"(\" close=\")\"><mrow> <mfrac><mrow><mi>r</mi></mrow><mrow><msub><mrow><mi>r</mi></mrow><mrow><mi>c</mi></mrow></msub></mrow></mfrac></mrow></mfenced> </mrow><mrow><mn>2</mn></mrow></msup></mrow></mfenced> </mrow><mrow><mo class=\"MathClass-bin\">−</mo><mn>3</mn><mi>β</mi><mo class=\"MathClass-bin\">+</mo><mn>1</mn><mo class=\"MathClass-bin\">∕</mo><mn>2</mn></mrow></msup> <mo class=\"MathClass-bin\">+</mo> <mi>b</mi><mi>k</mi><mi>g</mi></math>";
     }
   };
 }
diff --git a/models/bpl1d.hpp b/models/bpl1d.hpp
index 29c6afd..7cb7377 100644
--- a/models/bpl1d.hpp
+++ b/models/bpl1d.hpp
@@ -49,9 +49,8 @@ namespace opt_utilities
   private:
     std::string do_to_string()const
     {
-      return "broken power law\n"
-	"y=y_b*(x/x_b)^gamma1 for x<x_b\n"
-	"y=y_b*(x/x_b)^gamma2 otherwise\n";
+      return "";
+      //return "<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\" class=\"equation\"><mi>f</mi><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-punc\">;</mo><msub><mrow><mi>x</mi></mrow><mrow><mi>b</mi></mrow></msub><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>y</mi></mrow><mrow><mi>b</mi></mrow></msub><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>γ</mi></mrow><mrow><mn>1</mn></mrow></msub><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>γ</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mo class=\"MathClass-close\">)</mo></mrow> <mo class=\"MathClass-rel\">=</mo> <mfenced separators=\"\" open=\"{\" close=\"\"><mrow> <mtable style=\"\" equalrows=\"false\" equalcolumns=\"false\" class=\"array\"><mtr><mtd class=\"array\" columnalign=\"center\"><msub><mrow><mi>y</mi></mrow><mrow><mi>b</mi></mrow></msub> <mfrac><mrow><msup><mrow><mi>x</mi></mrow><mrow><msub><mrow><mi>γ</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></msup></mrow><mrow><msubsup><mrow><mi>x</mi></mrow><mrow><mi>b</mi></mrow><mrow><msub><mrow><mi>γ</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></msubsup></mrow></mfrac></mtd><mtd class=\"array\" columnalign=\"center\">   <mi>x</mi> <mo class=\"MathClass-rel\">&lt;</mo> <msub><mrow><mi>x</mi></mrow><mrow><mi>b</mi></mrow></msub></mtd></mtr><mtr><mtd class=\"array\" columnalign=\"center\"> <msub><mrow><mi>y</mi></mrow><mrow><mi>b</mi></mrow></msub> <mfrac><mrow><msup><mrow><mi>x</mi></mrow><mrow><msub><mrow><mi>γ</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></msup></mrow><mrow><msubsup><mrow><mi>x</mi></mrow><mrow><mi>b</mi></mrow><mrow><msub><mrow><mi>γ</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></msubsup></mrow></mfrac> </mtd><mtd class=\"array\" columnalign=\"center\"><mi>o</mi><mi>t</mi><mi>h</mi><mi>e</mi><mi>r</mi><mi>w</mi><mi>i</mi><mi>s</mi><mi>e</mi></mtd></mtr><mtr><mtd class=\"array\" columnalign=\"center\">        </mtd></mtr> <!--cc--></mtable></mrow></mfenced></math>";
     }
   };
 }
diff --git a/models/bremss.hpp b/models/bremss.hpp
index 51b1415..f9be848 100644
--- a/models/bremss.hpp
+++ b/models/bremss.hpp
@@ -38,8 +38,7 @@ namespace opt_utilities
   private:
     std::string do_to_string()const
     {
-      return "Simplified bremss model\n"
-	"flux=norm*kT^0.5*e^{-E/kT}\n";
+      return "<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\" class=\"equation\"><mi>f</mi><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-punc\">;</mo><mi>n</mi><mi>o</mi><mi>r</mi><mi>m</mi><mo class=\"MathClass-punc\">,</mo><mi>k</mi><mi>T</mi></mrow><mo class=\"MathClass-close\">)</mo></mrow> <mo class=\"MathClass-rel\">=</mo> <mi>n</mi><mi>o</mi><mi>r</mi><mi>m</mi><msqrt><mrow><mi>k</mi><mi>T</mi></mrow></msqrt><msup><mrow><mi>e</mi></mrow><mrow><mo class=\"MathClass-bin\">−</mo><mi>x</mi><mo class=\"MathClass-bin\">∕</mo><mi>k</mi><mi>T</mi> </mrow></msup></math>";
     }
   };
 }
diff --git a/models/gauss1d.hpp b/models/gauss1d.hpp
index ad54510..1fb0b24 100644
--- a/models/gauss1d.hpp
+++ b/models/gauss1d.hpp
@@ -34,15 +34,14 @@ namespace opt_utilities
       T N=get_element(param,0);
       T x0=get_element(param,1);
       T sigma=get_element(param,2);
-      T y=(x-x0)/sigma;
+      T y=(x-x0)/2./sigma;
       return N*exp(-y*y);
     }
 
   private:
     std::string do_to_string()const
     {
-      return "Gaussian model\n"
-	"y=N*exp(-(x-x0)^2/sigma^2\n";
+      return "<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\" class=\"equation\"><mi>f</mi><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-punc\">;</mo><mi>N</mi><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>x</mi></mrow><mrow><mn>0</mn></mrow></msub><mo class=\"MathClass-punc\">,</mo><mi>σ</mi></mrow><mo class=\"MathClass-close\">)</mo></mrow> <mo class=\"MathClass-rel\">=</mo> <mi>N</mi><msup><mrow><mi>e</mi></mrow><mrow><mo class=\"MathClass-bin\">−</mo><mfrac><mrow><msup><mrow><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-bin\">−</mo><msub><mrow><mi>x</mi></mrow><mrow><mn>0</mn></mrow></msub></mrow><mo class=\"MathClass-close\">)</mo></mrow></mrow><mrow><mn>2</mn></mrow></msup></mrow><mrow><mn>2</mn><msup><mrow><mi>σ</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></mfrac>    </mrow></msup></math>";
     }
   };
 }
diff --git a/models/lin1d.hpp b/models/lin1d.hpp
index 0db54ae..6268b0d 100644
--- a/models/lin1d.hpp
+++ b/models/lin1d.hpp
@@ -36,8 +36,9 @@ namespace opt_utilities
   private:
     std::string do_to_string()const
     {
-      return "linear model\n"
-	"y=k*x+b\n";
+      return "<math><mrow> <mtext>f(x;k,b)=k x+b</mtext>		\
+    </mrow>								\
+</math>";
     }
   };
 }
diff --git a/models/nbeta1d.hpp b/models/nbeta1d.hpp
index 7ae8c0c..d43a8d8 100644
--- a/models/nbeta1d.hpp
+++ b/models/nbeta1d.hpp
@@ -23,7 +23,7 @@ namespace opt_utilities
   public:
     nbeta1d()
     {
-      this->push_param_info(param_info<std::vector<T> >("S0",1));
+      this->push_param_info(param_info<std::vector<T> >("n0",1));
       this->push_param_info(param_info<std::vector<T> >("rc",10));
       this->push_param_info(param_info<std::vector<T> >("beta",2./3.));
       this->push_param_info(param_info<std::vector<T> >("bkg",0));
@@ -32,19 +32,18 @@ namespace opt_utilities
 
     T do_eval(const T& x,const std::vector<T>& param)
     {
-      T S0=get_element(param,0);
+      T n0=get_element(param,0);
       T r_c=get_element(param,1);
       T beta=get_element(param,2);
       T bkg=get_element(param,3);
 
-      return bkg+S0*pow(1+(x*x)/(r_c*r_c),-3./2.*beta);
+      return bkg+n0*pow(1+(x*x)/(r_c*r_c),-3./2.*beta);
     }
     
   private:
     std::string do_to_string()const
     {
-      return "density beta model\n"
-	"n=n0*(1+(r/rc)^2)^(-1.5*beta)\n";
+      return "<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\" class=\"equation\"><mi>f</mi><mrow><mo class=\"MathClass-open\">(</mo><mrow><mi>x</mi><mo class=\"MathClass-punc\">;</mo><msub><mrow><mi>n</mi></mrow><mrow><mn>0</mn></mrow></msub><mo class=\"MathClass-punc\">,</mo><mi>β</mi><mo class=\"MathClass-punc\">,</mo><msub><mrow><mi>r</mi></mrow><mrow><mi>c</mi></mrow></msub><mo class=\"MathClass-punc\">,</mo><mi>b</mi><mi>k</mi><mi>g</mi></mrow><mo class=\"MathClass-close\">)</mo></mrow> <mo class=\"MathClass-rel\">=</mo> <msub><mrow><mi>n</mi></mrow><mrow><mn>0</mn></mrow></msub><msup><mrow> <mfenced separators=\"\" open=\"[\" close=\"]\"><mrow><mn>1</mn> <mo class=\"MathClass-bin\">+</mo><msup><mrow> <mfenced separators=\"\" open=\"(\" close=\")\"><mrow> <mfrac><mrow><mi>r</mi></mrow><mrow><msub><mrow><mi>r</mi></mrow><mrow><mi>c</mi></mrow></msub></mrow></mfrac></mrow></mfenced> </mrow><mrow><mn>2</mn></mrow></msup></mrow></mfenced> </mrow><mrow><mo class=\"MathClass-bin\">−</mo><mfrac><mrow><mn>3</mn></mrow><mrow><mn>2</mn></mrow></mfrac><mi>β</mi><mo class=\"MathClass-bin\">+</mo><mn>1</mn><mo class=\"MathClass-bin\">∕</mo><mn>2</mn></mrow></msup> <mo class=\"MathClass-bin\">+</mo> <mi>b</mi><mi>k</mi><mi>g</mi></math>";
     }
   };
 }