/// <summary>
        /// Adds two matrices.
        /// </summary>
        /// <param name="value1">The first matrix.</param>
        /// <param name="value2">The second matrix.</param>
        /// <returns>The sum of both values.</returns>
        public static FPMatrix4x4 operator +(FPMatrix4x4 value1, FPMatrix4x4 value2)
        {
            FPMatrix4x4 result;

            FPMatrix4x4.Add(ref value1, ref value2, out result);
            return(result);
        }
        /// <summary>
        /// Matrices are added.
        /// </summary>
        /// <param name="matrix1">The first matrix.</param>
        /// <param name="matrix2">The second matrix.</param>
        /// <returns>The sum of both matrices.</returns>
        public static FPMatrix4x4 Add(FPMatrix4x4 matrix1, FPMatrix4x4 matrix2)
        {
            FPMatrix4x4 result;

            FPMatrix4x4.Add(ref matrix1, ref matrix2, out result);
            return(result);
        }
        /// <summary>
        /// Subtracts two matrices.
        /// </summary>
        /// <param name="value1">The first matrix.</param>
        /// <param name="value2">The second matrix.</param>
        /// <returns>The difference of both values.</returns>
        public static FPMatrix4x4 operator -(FPMatrix4x4 value1, FPMatrix4x4 value2)
        {
            FPMatrix4x4 result;

            FPMatrix4x4.Multiply(ref value2, -FP.One, out value2);
            FPMatrix4x4.Add(ref value1, ref value2, out result);
            return(result);
        }