# strands(List) -- strand span of degree sequence

## Synopsis

• Function: strands
• Usage:
strands D
• Inputs:
• D, a list, a sequence of integers, called a degree sequence
• Outputs:

## Description

This is one less than the number of strands of D. Note that some of the strands can be empty.
 i1 : D = {2,3,5, 9,10,11} o1 = {2, 3, 5, 9, 10, 11} o1 : List i2 : strands(D) o2 = 4