Tue May 11 19:26:41 2021 

constants_test():
  R version 3.4.4 (2018-03-15) 
  Test constants(), with the interface:
    [g,c,h] = constants()

    g =  6.67384e-11 , c =  299792458 , h =  6.62607e-34 

constants_test():
  Normal end of execution.
Tue May 11 19:26:41 2021