The second method operates in the matrix representation, expressing the value of the matrix <math>\mathfrak{L}^\mathfrak{W}</math> at an argument <math>u\!</math> as a product of coefficient powers:
+
The second method operates in the matrix representation, expressing the value of the matrix <math>\mathfrak{L}^\mathfrak{W}</math> with respect to an argument <math>u\!</math> as a product of coefficient powers: