346 
MR. WARREN ON GEOMETRICAL REPRESENTATION 
For let a 1 = s, 
then 
= m s , 
en ((“)”') 
••• er = (D“ _ 
In like manner = yEy 14 , and + n + 
/ \ 7ti / \ 7i / t '' \ m s / \ n s 
CO • CO = (?) • (?) 
( -p*\ 771 4- 71 . 5 
?) 
?) • 
26. wt = _ m , where a and m are any quantities whatever. 
For let a! = n, 
then 
" ((;)“)’ = ""' aad ((;)■■)' 
cr=(?p and cr 
= — wi ??, 
( E ) 
Let m n — s ~F t s/ — L where 5 and t are possible quantities, 
then / « 
C) = ( E ) 
S -f- i — I 
o ( E )‘-cr 
-(?)■• or 
=(?r-o) 
- (?)'■■ 
= cr 
27. Let a and b be any quantities whatever, and f a quantity 
such that «' + b' = ; then ah— f. 
p <1 * 
