Integral-Examples.md

 # Integral Examples
 
+## Example 1
+
+Original MathML:
+```html
+<math>
+  <mi>∫</mi>
+  <mi>a</mi>
+  <mo>+</mo>
+  <mi>b</mi>
+  <mi>dx</mi>
+</math>
+
+```
+
+Semantic Tree:
+```html
+<stree>
+  <integral role="integral" id="6">
+    <children>
+      <largeop role="integral" id="0">∫</largeop>
+      <infixop role="addition" id="5">
+        +
+        <content>
+          <operator role="addition" id="2">+</operator>
+        </content>
+        <children>
+          <identifier role="latinletter" font="italic" id="1">a</identifier>
+          <identifier role="latinletter" font="italic" id="3">b</identifier>
+        </children>
+      </infixop>
+      <identifier role="unknown" font="normal" id="4">dx</identifier>
+    </children>
+  </integral>
+</stree>
+
+```
+
+Semantically enriched MathML:
+```html
+<math type="integral" role="integral" id="6" children="0,5,4">
+  <mi type="largeop" role="integral" id="0" parent="6">∫</mi>
+  <mrow type="infixop" role="addition" id="5" children="1,3" content="2" parent="6">
+    <mi type="identifier" role="latinletter" id="1" parent="5">a</mi>
+    <mo type="operator" role="addition" id="2" operator="infixop,+" parent="5">+</mo>
+    <mi type="identifier" role="latinletter" id="3" parent="5">b</mi>
+  </mrow>
+  <mi type="identifier" role="unknown" id="4" parent="6">dx</mi>
+</math>
+
+```
+
+
+## Example 2
+
+Original MathML:
+```html
+<math>
+  <mi>∫</mi>
+  <mi>∫</mi>
+  <mi>∫</mi>
+  <mi>dx</mi>
+  <mi>dy</mi>
+  <mi>dz</mi>
+</math>
+
+```
+
+Semantic Tree:
+```html
+<stree>
+  <integral role="integral" id="9">
+    <children>
+      <largeop role="integral" id="0">∫</largeop>
+      <integral role="integral" id="8">
+        <children>
+          <largeop role="integral" id="1">∫</largeop>
+          <integral role="integral" id="7">
+            <children>
+              <largeop role="integral" id="2">∫</largeop>
+              <empty role="unknown" id="6"/>
+              <identifier role="unknown" font="normal" id="3">dx</identifier>
+            </children>
+          </integral>
+          <identifier role="unknown" font="normal" id="4">dy</identifier>
+        </children>
+      </integral>
+      <identifier role="unknown" font="normal" id="5">dz</identifier>
+    </children>
+  </integral>
+</stree>
+
+```
+
+Semantically enriched MathML:
+```html
+<math type="integral" role="integral" id="9" children="0,8,5">
+  <mi type="largeop" role="integral" id="0" parent="9">∫</mi>
+  <mrow type="integral" role="integral" id="8" children="1,7,4" parent="9">
+    <mi type="largeop" role="integral" id="1" parent="8">∫</mi>
+    <mrow type="integral" role="integral" id="7" children="2,6,3" parent="8">
+      <mi type="largeop" role="integral" id="2" parent="7">∫</mi>
+      <mrow type="empty" role="unknown" id="6" children="" parent="7"/>
+      <mi type="identifier" role="unknown" id="3" parent="7">dx</mi>
+    </mrow>
+    <mi type="identifier" role="unknown" id="4" parent="8">dy</mi>
+  </mrow>
+  <mi type="identifier" role="unknown" id="5" parent="9">dz</mi>
+</math>
+
+```
+
+
+## Example 3
+
 Original MathML:
 ```html
 <math>