diff --git a/source/_data/documentation.yml b/source/_data/documentation.yml
index c142e87fe..342b1888c 100644
--- a/source/_data/documentation.yml
+++ b/source/_data/documentation.yml
@@ -72,7 +72,6 @@ toc:
       - Duplicate Variable Flags: /documentation/breaking-changes/duplicate-var-flags/
       - Default Exports: /documentation/breaking-changes/default-export/
       - abs() Percentage: /documentation/breaking-changes/abs-percent/
-      - Calc Functions: /documentation/breaking-changes/calc-functions/
   - Command Line: /documentation/cli/
     :children:
       - Dart Sass: /documentation/cli/dart-sass/
diff --git a/source/documentation/at-rules/function.md b/source/documentation/at-rules/function.md
index eabf3539b..3ffcbaf79 100644
--- a/source/documentation/at-rules/function.md
+++ b/source/documentation/at-rules/function.md
@@ -18,30 +18,30 @@ Functions are called using the normal CSS function syntax.
 [`@return` at-rule]: #return
 
 {% codeExample 'functions' %}
-  @function fibonacci($n) {
-    $sequence: 0 1;
-    @for $_ from 1 through $n {
-      $new: nth($sequence, length($sequence)) + nth($sequence, length($sequence) - 1);
-      $sequence: append($sequence, $new);
+  @function pow($base, $exponent) {
+    $result: 1;
+    @for $_ from 1 through $exponent {
+      $result: $result * $base;
     }
-    @return nth($sequence, length($sequence));
+    @return $result;
   }
 
   .sidebar {
     float: left;
-    margin-left: fibonacci(4) * 1px;
+    margin-left: pow(4, 3) * 1px;
   }
   ===
-  @function fibonacci($n)
-    $sequence: 0 1
-    @for $_ from 1 through $n
-      $new: nth($sequence, length($sequence)) + nth($sequence, length($sequence) - 1)
-      $sequence: append($sequence, $new)
-    @return nth($sequence, length($sequence))
+  @function pow($base, $exponent)
+    $result: 1
+    @for $_ from 1 through $exponent
+      $result: $result * $base
+
+    @return $result
+
 
   .sidebar
     float: left
-    margin-left: fibonacci(4) * 1px
+    margin-left: pow(4, 3) * 1px
 {% endcodeExample %}
 
 {% funFact %}
diff --git a/source/documentation/breaking-changes/calc-functions.md b/source/documentation/breaking-changes/calc-functions.md
deleted file mode 100644
index 37a131150..000000000
--- a/source/documentation/breaking-changes/calc-functions.md
+++ /dev/null
@@ -1,123 +0,0 @@
----
-title: 'Breaking Change: Calc functions'
-introduction: >
-   Sass has added support for the CSS Values and Units Level 4 specification.
-   These global functions are now reserved: `round()`, `mod()`, `rem()`,
-   `sin()`, `cos()`, `tan()`, `asin()`, `acos()`, `atan()`, `atan2()`, `pow()`,
-   `sqrt()`, `hypot()`, `log()`, `exp()`, `abs()`, and `sign()`.
--------------------------------------------------------------------------------
-{% compatibility 'dart: "1.65.0"', 'libsass: false', 'ruby: false' %}{% endcompatibility %}
-
-The new calc functions are now reserved as global functions. These function
-calls will be parsed as CSS calculations instead of function calls: [`round()`], [`mod()`],
-[`rem()`], [`sin()`], [`cos()`], [`tan()`], [`asin()`], [`acos()`], [`atan()`], [`atan2()`],
-[`pow()`], [`sqrt()`], [`hypot()`], [`log()`], [`exp()`], [`abs()`], or [`sign()`].
-User-defined functions named after any of these may no longer be called without
-a namespace.
-
-[`round()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/round
-[`abs()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/abs
-[`sin()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/sin
-[`cos()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/cos
-[`tan()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/tan
-[`asin()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/asin
-[`acos()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/acos
-[`atan()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/atan
-[`atan2()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/atan2
-[`pow()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/pow
-[`sqrt()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/sqrt
-[`hypot()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/hypot
-[`log()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/log
-[`exp()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/exp
-[`mod()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/mod
-[`rem()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/rem
-[`sign()`]: https://developer.mozilla.org/en-US/docs/Web/CSS/sign
-
-{% codeExample 'calc-function-bad', false %}
-@function rem($number) {
-  @return $number % 10;
-}
-
-.sidebar {
-  // WRONG, Sass parses `rem()` as a calculation, not as a call to the function
-  // declared above. This throws an error because `rem()` requires two parameters.
-  margin-left: rem(9) * 1px;
-}
-===
-@function rem($number)
-  @return $number % 10
-
-.sidebar 
-    // WRONG, Sass parses `rem()` as a calculation, not as a call to the function
-    // declared above. This throws an error because `rem()` requires two parameters.
-    margin-left: rem(9) * 1px
-{% endcodeExample %}
-
-However, if the function is loaded from another file and called with a namespace
-it is parsed as a function call.
-
-{% codeExample 'calc-function-use' %}
-  // _library.scss
-  @function rem($number) {
-    @return $number % 10;
-  }
-  ---
-  // style.scss
-  @use 'library';
-
-  .sidebar {
-    // RIGHT, Sass parses `library.rem()` as a function call rather than
-    // a calculation because of the namespace.
-    margin: library.rem(11);
-  }
-  ===
-  // _library.sass
-  @function rem($number)
-    @return $number % 10
-  ---
-  // style.sass
-  @use 'library'
-
-  .sidebar
-    // RIGHT, Sass parses `library.rem()` as a function call rather than
-    // a calculation because of the namespace.
-    a: library.rem(11) * 1px
-  ===
-  .sidebar {
-    margin: 1;
-  }
-{% endcodeExample %}
-
-{% headsUp %}
-  Because calling a function from a module loaded [_without a namespace_] by
-  writing `@use <url> as *` has the same syntax as calling a global function,
-  Sass will parse these function calls as calculations, not as calls to the
-  function defined in the module!
-
-  [_without a namespace_]: /documentation/at-rules/use/#choosing-a-namespace
-{% endheadsUp %}
-
-To preserve the current behavior, use [`meta.call()`] and [`meta.get-function()`].
-
-[`meta.get-function()`]: /documentation/modules/meta/#get-function
-[`meta.call()`]: /documentation/modules/meta/#call
-
-{% codeExample 'function-using-meta'%}
-@use 'sass:meta';
-
-@function rem($number) {
-  @return $number % 10;
-}
-
-.sidebar {
-  margin-left: meta.call(meta.get-function("rem"), 9) * 1px;
-}
-===
-@use 'sass:meta'
-
-@function rem($number)
-  @return $number % 10
-
-.sidebar
-  margin-left: meta.call(meta.get-function("rem"), 9) * 1px
-{% endcodeExample %}
\ No newline at end of file