add missing doxygen style comments

modules/core/include/math-utils.h

@@ -29,13 +29,52 @@
 extern "C" {
 #endif
 
+/**
+ * @brief Adds two integers.
+ * @param a The first integer.
+ * @param b The second integer.
+ * @return The sum of a and b.
+ */
 int32_t add(int32_t a, int32_t b);
+
+/**
+ * @brief Subtracts one integer from another.
+ * @param a The integer to subtract from.
+ * @param b The integer to subtract.
+ * @return The result of subtracting b from a.
+ */
 int32_t subtract(int32_t a, int32_t b);
+
+/**
+ * @brief Multiplies two integers.
+ * @param a The first integer.
+ * @param b The second integer.
+ * @return The product of a and b.
+ */
 int32_t multiply(int32_t a, int32_t b);
+
+/**
+ * @brief Divides one float by another.
+ * @param a The float to divide.
+ * @param b The divisor.
+ * @return The result of dividing a by b.
+ * @throw Division by zero error if b is zero.
+ */
 float divide(float a, float b);
+
+/**
+ * @brief Calculates the area of the circle.
+ * @param radius The radius of the circle.
+ * @return The area of the circle.
+ */
 float getCircleArea(float radius);
-float getCircleCircumference(float radius);
 
+/**
+ * @brief Calculates the circumference of the circle.
+ * @param radius The radius of the circle
+ * @return The circumference of the circle.
+ */
+float getCircleCircumference(float radius);
 #ifdef __cplusplus
 }
 #endif