Reverse operation

(Math.) an operation the steps of which are taken in a contrary order to that in which the same or similar steps are taken in another operation considered as direct; an operation in which that is sought which in another operation is given, and that given which in the other is sought; as, finding the length of a pendulum from its time of vibration is the reverse operation to finding the time of vibration from the length.

See also: Reverse

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Thus, transformers are also used in the reverse operation of reducing the voltage in the current, known as "stepping down", before the electricity is sent to individual end users.
Asher performed a reverse operation: He removed the wall separating the exhibition space from Copley's office, creating a permeable, responsive architecture with social ramifications (publicly exposing the gallery's dealings).
In affected vehicles, rapid movement of the transmission shifter from park to drive may cause loss of PRNDL gear indication in the instrument cluster and momentary engagement of reverse operation before the vehicle achieves forward drive function.
The married mum of three children, aged nine, six and four, said: "Because of the cancer I can't have the reverse operation. I obviously have to have all my strength to fight the cancer.
Reverse operation is achieved by the electrical path only by running the motor in the opposite direction.
They are suitable for stepped speed-changing mechanisms, switching between forward and reverse operation, positioning/indexing, and inching.
She eventually had a reverse operation performed by the same brilliant surgeon.
While the main focus for technicians will be on mounting bearings, the reverse operation --dismounting--is no less important.
Conversely, it also engages in the reverse operation when it feels the need to withdraw liquidity, and issues central bank bills as a form of "reverse repo."
Since some fan manufacturers recommend reverse operation during heating season, Test Figure 1 will be revised to show both forward and reverse airflow.
The Solicon Reversing Contactor DRC3R includes an interlock control that allows only off, forward and reverse operation in a safe mode while providing high space saving; it switches instantaneously upon application of the control voltage unless an instantaneous change of direction is commanded, then it will delay the direction change by 100msec in order to prevent simultaneous forward and reverse operations.