the
rsr
of
factor
rsr
(
expression )
Factor and expression yield list
s of integers
, numbers
, or complexes
.
put rsr(2,3,6) -- yields 1
The rsr
function returns the reciprocal of the sum of the reciprocals of its arguments.
If all the values are integer
s or number
s, a number
is returned. If any value is a complex
, a complex
is returned.
One possible application of this function is in electronics. The rsr
of a list of resistances is equal to the equivalent resistance of resistors in parallel. The rsr
of a list of capacitances is equal to the equivalent capacitance of capacitors in series.