parameters: (self, value=0, index=0)
docstring: Initiate a new R3.
           
          Optional, the component index can be set with value.
docstring_summary: Initiate a new R3.
           
          Optional, the component index can be set with value.
docstring_tokens: Initiate a new R3 . Optional the component index can be set with value .
function: def __init__(self, value=0, index=0):
          """Initiate a new R3.
           
          Optional, the component index can be set with value.
          """
          self.mvec = [0] * 8
          self._base = ["1", "e1", "e2", "e3", "e12", "e13", "e23", "e123"]
          if (value != 0):
              self.mvec[index] = value
function_tokens: def __init__ ( self , value = 0 , index = 0 ) : self . mvec = [ 0 ] * 8 self . _base = [ "1" , "e1" , "e2" , "e3" , "e12" , "e13" , "e23" , "e123" ] if ( value != 0 ) : self . mvec [ index ] = value