
 Dimensional Analysis in Operations Research 
  The physical parameters of the pendulum problem, in addition to the period of oscillation, t [T], are the mass of the pendulum bob, m [M], the length of the string, L [L], the acceleration of gravity, g [LT ] and (perhaps) the maximum angle of oscillation measured in radians, A. 
  Silver [12] uses some dimensionless numbers to plot indifference curves in a continuous review stochastic (s, S) system and Ewing [6] proposed the use of dimensionless expressions rather than the original measurements in analysing data in the social sciences. 
  Probability is dimensionless in nature but random variables usually have a dimension of their own, depending on the particular model. 
 www.mcs.vuw.ac.nz /~vignaux/docs/diminor.html (3179 words) 
