TABLE FOR TRANSMISSION LINE PHENOMENA. 183 



SO that it is seen that 



/(/.) = V^^^llZ+1 = eosh (i sinh-. /,), (46) 



and Hkewise 



</(/0 = sinh (J sinh-i /H. (47) 



Eqviations (46) and (47) were used in computing many of the values 

 of the table by referring to values of hyperbolic functions given in the 



Smithsouicui Institute Tables. 



16. Extension of Table to Larger Values of h. — By expansion 



in series it is easily shown that 



Cruft Laboratory, 



Harvard University, Cambridge, Mass. 



