Correct equations used for generic version of tgamma - equations should now match those used for igamma and the actual code.

Fixes #4583.

[SVN r64962]

doc/sf_and_dist/equations/gamm2.mml

@@ -28,6 +28,8 @@
           <munderover>
             <mo>&#x2211;</mo>
             <mrow>
+              <mi>k</mi>
+              <mo>=</mo>
               <mn>0</mn>
             </mrow>
             <mi>&#x221E;</mi>
@@ -42,7 +44,11 @@
                 <mi>a</mi>
                 <mrow>
                   <mover>
-                    <mi>n</mi>
+                    <mrow>
+                      <mi>k</mi>
+                      <mo>+</mo>
+                      <mn>1</mn>
+                    </mrow>
                     <mo>&#x2212;</mo>
                   </mover>
                 </mrow>
@@ -54,8 +60,12 @@
         <mfrac>
           <mn>1</mn>
           <mrow>
-            <mi>a</mi>
+            <mi>l</mi>
             <mo>&#x2212;</mo>
+            <mi>a</mi>
+            <mo>+</mo>
+            <mn>1</mn>
+            <mo>+</mo>
             <mfrac>
               <msub>
                 <mi>c</mi>
@@ -101,33 +111,38 @@
       </mrow>
     </mfenced>
     <mo>;</mo>
+    <mspace width="1em"/>
     <msub>
       <mi>c</mi>
       <mi>k</mi>
     </msub>
     <mo>=</mo>
-    <mo>&#x2212;</mo>
+    <mi>k</mi>
     <mfenced>
       <mrow>
         <mi>a</mi>
-        <mo>+</mo>
-        <mi>k</mi>
         <mo>&#x2212;</mo>
-        <mn>1</mn>
+        <mi>k</mi>
       </mrow>
     </mfenced>
+    <mspace width="1em"/>
     <mo>&#x2227;</mo>
+    <mspace width="1em"/>
     <msub>
       <mi>d</mi>
       <mi>k</mi>
     </msub>
     <mo>=</mo>
+    <mi>l</mi>
+    <mo>&#x2212;</mo>
     <mi>a</mi>
     <mo>+</mo>
+    <mn>2</mn>
     <mi>k</mi>
     <mo>+</mo>
-    <mi>l</mi>
+    <mn>1</mn>
   </mrow>
 </math>
 
 
+

doc/sf_and_dist/equations/igamma9.mml

@@ -5,7 +5,7 @@
       <mrow>
         <mi>a</mi>
         <mo>,</mo>
-        <mi>z</mi>
+        <mi>x</mi>
       </mrow>
     </mfenced>
     <mspace width="1em"/>
@@ -108,3 +108,4 @@
   </mrow>
 </math>
 
+