.$ syntex added with a gard condition for \(_\)

@@ -161,7 +161,7 @@ Markdown and LaTeX can be powerful tools for formatting text and mathematical ex
                                 },
                                 textAlign: TextAlign.justify,
                                 // textScaler: const TextScaler.linear(1.3),
-                                textScaleFactor: 1.7,
+                                textScaleFactor: 1,
                                 style: const TextStyle(
                                   // Regular text font size here.
                                   fontSize: 15,

@@ -30,9 +30,29 @@ class TexMarkdown extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    String tex = data.trim();
+    if (!tex.contains(r"\(")) {
+      tex = tex
+          .replaceAllMapped(
+              RegExp(
+                r"(?<!\\)\$\$(.*?)(?<!\\)\$\$",
+              ),
+              (match) => "\\[${match[1] ?? ""}\\]")
+          .replaceAllMapped(
+              RegExp(
+                r"(?<!\\)\$(.*?)(?<!\\)\$",
+              ),
+              (match) => "\\(${match[1] ?? ""}\\)");
+      tex = tex.splitMapJoin(
+        RegExp(r"\[.*?\]|\(.*?\)"),
+        onNonMatch: (p0) {
+          return p0.replaceAll("\\\$", "\$");
+        },
+      );
+    }
     return ClipRRect(
         child: MdWidget(
-      data.trim(),
+      tex,
       textDirection: textDirection,
       style: style,
       onLinkTab: onLinkTab,