Ratio of product to difference - terminology?

dgm
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Is there a specific mathematical term, which refers to this expression?

A * B
------
A - B
 
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hi dgm! :smile:
dgm said:
Is there a specific mathematical term, which refers to this expression?

A * B
------
A - B

not that i know of …

where did you come across this? :confused:​
 
It can be expressed as the reciprocal of (1/B)-(1/A).
 
tiny-tim said:
where did you come across this? :confused:

It's the form of an expression for the "room constant", a measurement in acoustics:

S*A
----
S-A

S is total surface area of a room, A is total absorption of a room in sabins.

eddybob123 said:
It can be expressed as the reciprocal of (1/B)-(1/A).

Nice one. Thanks.
 

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