diff --git a/src/Terminal/HelpText.ts b/src/Terminal/HelpText.ts
index 64239cc27..6d231182c 100644
--- a/src/Terminal/HelpText.ts
+++ b/src/Terminal/HelpText.ts
@@ -218,15 +218,18 @@ export const HelpTexts: Record<string, string[]> = {
   expr: [
     "Usage: expr [mathematical expression]",
     " ",
-    "Evaluate a  simple mathematical expression. Supports native JavaScript operators:",
+    "Evaluate a simple mathematical expression. Supports native JavaScript operators:",
     " ",
     "+, -, /, *, **, %",
     " ",
     "Example:",
     " ",
-    "    expr 25 * 2 ** 10",
+    "    expr 25*2",
+    `    expr "25 * 2 ** 10"`,
     " ",
-    "Note that letters (non-digits) are not allowed and will be removed from the input.",
+    `Except for the dot ("."), parentheses ("(" and ")"), and the letters "e" and "E" (used for scientific notation), `,
+    `most non-digit characters are not allowed and will be removed from the input.`,
+    "Some edge cases may need to be enclosed in quotes to evaluate correctly.",
     " ",
   ],
   free: [