Loading AI tools
扭转数（英语：twisting number）是拓扑学中的一个拓扑不变量。指带状结构的扭转程度。取值为带状结构扭转角的2π分之一。[1]。一般记作:。扭转数和扭转角是同一个拓扑量，区别是单位是圆周角而不是弧度。
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
