title: 0th
text: # 0th
  
  0th or zeroth may refer to:
  
  ## Mathematics, science and technology
  
  * 0th or zeroth, an ordinal for the number 0
  * 0th dimension, a topological space
  * 0th element, of a data structure in computer science
  * 0th law of Thermodynamics
  * Zeroth (software), deep learning software for mobile devices
  
  ## Other uses
  
  * 0th grade, another name for kindergarten
  * January 0 or January 0th, an alternate name for December 31
  * 0 Avenue, a road in British Columbia straddling the Canada-US border
  