diff --git a/apps/web/lib/content.ts b/apps/web/lib/content.ts
index 859b62c0..3ed5da61 100644
--- a/apps/web/lib/content.ts
+++ b/apps/web/lib/content.ts
@@ -149,6 +149,111 @@ export const defaultEditorContent = {
             },
           ],
         },
+        {
+          type: "listItem",
+          content: [
+            {
+              type: "paragraph",
+              content: [
+                {
+                  type: "text",
+                  text: "Mathematical symbols with LaTeX expression:",
+                },
+              ],
+            },
+            {
+              type: "orderedList",
+              attrs: {
+                tight: true,
+                start: 1,
+              },
+              content: [
+                {
+                  type: "listItem",
+                  content: [
+                    {
+                      type: "paragraph",
+                      content: [
+                        {
+                          type: "math",
+                          attrs: {
+                            latex: "E = mc^2",
+                          },
+                        },
+                      ],
+                    },
+                  ],
+                },
+                {
+                  type: "listItem",
+                  content: [
+                    {
+                      type: "paragraph",
+                      content: [
+                        {
+                          type: "math",
+                          attrs: {
+                            latex: "a^2 = \\sqrt{b^2 + c^2}",
+                          },
+                        },
+                      ],
+                    },
+                  ],
+                },
+                {
+                  type: "listItem",
+                  content: [
+                    {
+                      type: "paragraph",
+                      content: [
+                        {
+                          type: "math",
+                          attrs: {
+                            latex:
+                              "\\hat{f} (\\xi)=\\int_{-\\infty}^{\\infty}f(x)e^{-2\\pi ix\\xi}dx",
+                          },
+                        },
+                      ],
+                    },
+                  ],
+                },
+                {
+                  type: "listItem",
+                  content: [
+                    {
+                      type: "paragraph",
+                      content: [
+                        {
+                          type: "math",
+                          attrs: {
+                            latex:
+                              "A=\\begin{bmatrix}a&b\\\\c&d \\end{bmatrix}",
+                          },
+                        },
+                      ],
+                    },
+                  ],
+                },
+                {
+                  type: "listItem",
+                  content: [
+                    {
+                      type: "paragraph",
+                      content: [
+                        {
+                          type: "math",
+                          attrs: {
+                            latex: "\\sum_{i=0}^n x_i",
+                          },
+                        },
+                      ],
+                    },
+                  ],
+                },
+              ],
+            },
+          ],
+        },
       ],
     },
     {