diff --git a/documentation/intrinsics.md b/documentation/intrinsics.md
index 32b3f2f..b662893 100644
--- a/documentation/intrinsics.md
+++ b/documentation/intrinsics.md
@@ -73,6 +73,11 @@ Returns the larger of `a` and `b`.
 
 Returns the absolute value of `value`.
 
+#### `<T>::sqrt(value: T) -> T`
+*Note: (only on floating-point numbers)*
+
+Calculates the square-root of `value`
+
 #### `<T>::pow(value: T, exponent: T) -> T`
 *Note: (only on floating-point numbers)*
 
@@ -113,6 +118,11 @@ Calculates arccosine of `value`
 
 Calculates arctangent of `value`
 
+#### `<T>::atan2(value: T) -> T`
+*Note: (only on floating-point numbers)*
+
+Calculates 2-argument arctangent of `value`
+
 #### `<T>::sinh(value: T) -> T`
 *Note: (only on floating-point numbers)*
 
diff --git a/reid/src/codegen/intrinsics.rs b/reid/src/codegen/intrinsics.rs
index 2ec4aa0..74eb203 100644
--- a/reid/src/codegen/intrinsics.rs
+++ b/reid/src/codegen/intrinsics.rs
@@ -130,6 +130,12 @@ pub fn get_intrinsic_assoc_functions(ty: &TypeKind) -> Vec<FunctionDefinition> {
         });
     }
     if ty.category() == TypeCategory::Real {
+        intrinsics.push(simple_intrinsic(
+            "sqrt",
+            vec!["self"],
+            ty.clone(),
+            LLVMIntrinsicKind::Sqrt(ty.clone()),
+        ));
         intrinsics.push(simple_intrinsic(
             "sin",
             vec!["self"],