diff --git a/docs/src/functions/math-and-trigonometry.md b/docs/src/functions/math-and-trigonometry.md
index 8b62a60..9a40329 100644
--- a/docs/src/functions/math-and-trigonometry.md
+++ b/docs/src/functions/math-and-trigonometry.md
@@ -38,7 +38,7 @@ You can track the progress in this [GitHub issue](https://github.com/ironcalc/Ir
 | DECIMAL         | <Badge type="info" text="Not implemented yet" /> | –             |
 | DEGREES         | <Badge type="tip" text="Available" /> | [DEGREES](math_and_trigonometry/degrees) |
 | EVEN            | <Badge type="tip" text="Available" /> | [EVEN](math_and_trigonometry/even) |
-| EXP             | <Badge type="info" text="Not implemented yet" /> | –             |
+| EXP             | <Badge type="tip" text="Available" /> | –             |
 | FACT            | <Badge type="info" text="Not implemented yet" /> | –             |
 | FACTDOUBLE      | <Badge type="info" text="Not implemented yet" /> | –             |
 | FLOOR           | <Badge type="info" text="Not implemented yet" /> | –             |
@@ -76,7 +76,7 @@ You can track the progress in this [GitHub issue](https://github.com/ironcalc/Ir
 | SECH            | <Badge type="info" text="Not implemented yet" /> | –             |
 | SERIESSUM       | <Badge type="info" text="Not implemented yet" /> | –             |
 | SEQUENCE        | <Badge type="info" text="Not implemented yet" /> | –             |
-| SIGN            | <Badge type="info" text="Not implemented yet" /> | –             |
+| SIGN            | <Badge type="tip" text="Available" /> | –             |
 | SIN             | <Badge type="tip" text="Available" />          | [SIN](math_and_trigonometry/sin) |
 | SINH            | <Badge type="tip" text="Available" />          | [SINH](math_and_trigonometry/sinh) |
 | SQRT            | <Badge type="tip" text="Available" />          | –             |
diff --git a/docs/src/functions/math_and_trigonometry/exp.md b/docs/src/functions/math_and_trigonometry/exp.md
index 4a99d4d..233aea8 100644
--- a/docs/src/functions/math_and_trigonometry/exp.md
+++ b/docs/src/functions/math_and_trigonometry/exp.md
@@ -7,6 +7,5 @@ lang: en-US
 # EXP
 
 ::: warning
-🚧 This function is not yet available in IronCalc.
-[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
+🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
 :::
\ No newline at end of file
diff --git a/docs/src/functions/math_and_trigonometry/sign.md b/docs/src/functions/math_and_trigonometry/sign.md
index c934692..dfbbf88 100644
--- a/docs/src/functions/math_and_trigonometry/sign.md
+++ b/docs/src/functions/math_and_trigonometry/sign.md
@@ -7,6 +7,5 @@ lang: en-US
 # SIGN
 
 ::: warning
-🚧 This function is not yet available in IronCalc.
-[Follow development here](https://github.com/ironcalc/IronCalc/labels/Functions)
+🚧 This function is implemented but currently lacks detailed documentation. For guidance, you may refer to the equivalent functionality in [Microsoft Excel documentation](https://support.microsoft.com/en-us/office/excel-functions-by-category-5f91f4e9-7b42-46d2-9bd1-63f26a86c0eb).
 :::
\ No newline at end of file