diff --git a/linalg/eigen/fcarouge/linalg.hpp b/linalg/eigen/fcarouge/linalg.hpp
index e16d4a749..19c4a8999 100644
--- a/linalg/eigen/fcarouge/linalg.hpp
+++ b/linalg/eigen/fcarouge/linalg.hpp
@@ -42,10 +42,9 @@ For more information, please refer to <https://unlicense.org> */
 //! @file
 //! @brief Linear algebra facade for Eigen3 third party implementation.
 //!
-//! @details Standardizes matrix, vectors, and algebraic values type names for
-//! the library usage.
+//! @details Matrix, vectors, and named algebraic values.
 //!
-//! @note The Eigen3 linear algebra is not constexpr-compatible.
+//! @note The Eigen3 linear algebra is not constexpr-compatible as of July 2023.
 
 #include "fcarouge/utility.hpp"
 
diff --git a/linalg/lazy/fcarouge/linalg.hpp b/linalg/lazy/fcarouge/linalg.hpp
index 0033b3bcd..3a5b6ed1d 100644
--- a/linalg/lazy/fcarouge/linalg.hpp
+++ b/linalg/lazy/fcarouge/linalg.hpp
@@ -36,14 +36,13 @@ OTHER DEALINGS IN THE SOFTWARE.
 
 For more information, please refer to <https://unlicense.org> */
 
-#ifndef FCAROUGE_LINALG_LAZY_HPP
-#define FCAROUGE_LINALG_LAZY_HPP
+#ifndef FCAROUGE_LINALG_HPP
+#define FCAROUGE_LINALG_HPP
 
 //! @file
-//! @brief Linear algebra facade for a coroutine-based lazy implementation.
+//! @brief Linear algebra coroutine-based lazy implementation.
 //!
-//! @details Standardizes matrix, vectors, and algebraic values type names for
-//! the library usage.
+//! @details Matrix, vectors, and named algebraic values.
 //!
 //! @note Idea from:
 //! https://gieseanw.wordpress.com/2019/10/20/we-dont-need-no-stinking-expression-templates/
@@ -60,7 +59,6 @@ For more information, please refer to <https://unlicense.org> */
 #include <utility>
 
 namespace fcarouge {
-
 // Semantic? Guarantees? to_generator? std::ranges::to overload? make_generator?
 // Overloads for C-array?
 // Need one copy, avoid any extra?
@@ -323,7 +321,7 @@ auto make_zero_generator{[]() -> std::generator<Type> {
 
 //! @name Algebraic Named Values
 //! @{
-//! @brief The identity matrix.
+//! @brief The identity matrix lazy specialization.
 template <typename Type, auto Row, auto Column>
 auto identity_v<matrix<Type, Row, Column>>{[](auto... args) {
   matrix<Type, Row, Column, true> m{
@@ -335,7 +333,7 @@ auto identity_v<matrix<Type, Row, Column>>{[](auto... args) {
   }
 }};
 
-//! @brief The zero matrix.
+//! @brief The zero matrix lazy specialization.
 template <typename Type, auto Row, auto Column>
 auto zero_v<matrix<Type, Row, Column>>{[](auto... args) {
   matrix<Type, Row, Column, true> m{make_zero_generator<Type, Row, Column>()};
@@ -414,4 +412,4 @@ operator+(matrix<Type, Row, Column> lhs, matrix<Type, Row, Column> rhs) {
 }
 } // namespace fcarouge
 
-#endif // FCAROUGE_LINALG_LAZY_HPP
+#endif // FCAROUGE_LINALG_HPP
diff --git a/linalg/naive/fcarouge/linalg.hpp b/linalg/naive/fcarouge/linalg.hpp
index 1490444cf..012bd5c56 100644
--- a/linalg/naive/fcarouge/linalg.hpp
+++ b/linalg/naive/fcarouge/linalg.hpp
@@ -39,6 +39,11 @@ For more information, please refer to <https://unlicense.org> */
 #ifndef FCAROUGE_LINALG_HPP
 #define FCAROUGE_LINALG_HPP
 
+//! @file
+//! @brief Linear algebra array-based naive implementation.
+//!
+//! @details Matrix, vectors, and named algebraic values.
+
 #include "fcarouge/utility.hpp"
 
 #include <initializer_list>
@@ -166,7 +171,7 @@ matrix(const Type (&)[Row]) -> matrix<Type, Row, 1>; // column_vector
 
 //! @name Algebraic Named Values
 //! @{
-//! @brief Identity
+//! @brief The identity matrix naive specialization.
 template <typename Type>
 inline constexpr Type identity_v<matrix<Type, 1, 1>>{1.0};
 
@@ -189,7 +194,7 @@ inline constexpr matrix<Type, Row, Column>
       return result;
     }()};
 
-//! @brief Zero
+//! @brief The zero matrix naive specialization.
 template <typename Type> inline constexpr Type zero_v<matrix<Type, 1, 1>>{};
 
 template <typename Type, auto Row, auto Column>