The Lowest Few Functions

$\displaystyle j_0(x)$	$\textstyle =$	$\displaystyle \frac{\sin(x)}{x}$	(11.87)
$\displaystyle j_1(x)$	$\textstyle =$	$\displaystyle \frac{\sin(x)}{x^2} - \frac{\cos(x)}{x}$	(11.88)
	$\textstyle \vdots$
$\displaystyle n_0(x)$	$\textstyle =$	$\displaystyle - \frac{\cos(x)}{x}$	(11.89)
$\displaystyle n_1(x)$	$\textstyle =$	$\displaystyle - \frac{\cos(x)}{x^2} - \frac{\sin(x)}{x}$	(11.90)
	$\textstyle \vdots$