Functions

rsr

Supported By

Syntax

[the] rsr of factor

rsr ( expression )

Factor and expression yield lists of integers, numbers, or complexes.

Example

put rsr(2,3,6) -- yields 1

Description

The rsr function returns the reciprocal of the sum of the reciprocals of its arguments.

If all the values are integers or numbers, 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.