Question 1020450
log( z/y )
-----------
An example:
Suppose the base is {{{ 10 }}} and
{{{ z = 10000 }}}
{{{ y = 10 }}}
-------------
{{{ log(z) - log(y) = log(10000) - log(10) }}}
{{{  log(z) - log(y) = 4 - 1 }}}
{{{  log(z) - log(y) = 3 }}}
and
{{{ log(( z/y )) = log( 10000/10 ) }}}
{{{ log(( z/y )) = log( 1000 ) }}}
{{{ log(( z/y )) = 3 }}}
-----------------
Hope this helps