DLMF: Notations O

Notations O

♦*♦A♦B♦C♦D♦E♦F♦G♦H♦I♦J♦K♦L♦M♦N♦O♦P♦Q♦R♦S♦T♦U♦V♦W♦X♦Y♦Z♦

$\mathop{O\/}\nolimits\!\left(x\right)$: order not exceeding; (2.1.3)
$\mathop{o\/}\nolimits\!\left(x\right)$: order less than; (2.1.2)

$\mathop{O_{{n}}\/}\nolimits\!\left(x\right)$: Neumann’s polynomial; (10.23.12)