If one takes the middle number, 5, and multiplies it by 3 ( the base number of the magic square of three ), the result is 15, which is also the constant sum of all the rows, columns, and two main diagonals.

If the first theory is correct ( see above ), then the absence of cavalry removed the main Athenian tactical disadvantage, and the threat of being outflanked made it imperative to attack.

* Haki Stërmilli's novel If I Were a Boy ( 1936 ) is written in the form of diary entries which documents the life of the main protagonist.

If an aftershock is larger than the main shock, the aftershock is redesignated as the main shock and the original main shock is redesignated as a foreshock.

If the raw material is hides and skin, size reduction, washing, removing hair from the hides, and de-greasing are the most important pretreatments used to make the hides and skins ready for the main extraction step.

If the buyer pays cash, there are three main financing options:

If there is a side pot, players involved in the side pot should show their hands before anyone who is all-in for only the main pot.

If the main objective of a campaign was not the conquest of a particular city, it could simply be passed by.

: Artificial Intelligence, Minority Report, and Catch Me If You Can are unofficially known as " the running man trilogy ", because each featured a main character escaping a pursuer.

Another more recent story involving travel to the future is Louis-Sébastien Mercier's L ' An 2440, rêve s ' il en fût jamais (" The Year 2440: A Dream If Ever There Were One "), a utopian novel in which the main character is transported to the year 2440.

If the propulsion system must produce large amounts of thrust, or have a high specific impulse, as on the main motor of an interplanetary spacecraft, other technologies are used.

If a given route is withdrawn by a neighbor, and there is no other route to that destination, the route is removed from the Loc-RIB, and no longer sent, by BGP, to the main routing table manager.

If the router does not have a route to that destination from any non-BGP source, the withdrawn route will be removed from the main routing table.

If the connection to the main controller is interrupted, such readers stop working or function in a degraded mode.

If aggradation continues to occur in the main channel, this will make levee overtopping more likely again, and the levees can continue to build up.

If everything worked well, Gelimer's 7, 000-man main body would follow Gibamund around the Roman left flank and cut off their retreat.

If the main sound system is stereo, the subwoofers can also be in stereo.

Thomas Jefferson explained in 1785 that there are three main limitations on the power of a court of equity: " If the legislature means to enact an injustice, however palpable, the court of Chancery is not the body with whom a correcting power is lodged.

If a player did not win anything in the main game, $ 500 was given to them as a consolation prize.

) If the main defense of tariffs is to stimulate infant industries, a tariff must be high enough to allow domestic manufactured goods to compete for the tariff to be successful.

If a player is all in for part of the ante, or the exact amount of the ante, an equal amount of every other player's ante is placed in the main pot, with any remaining fraction of the ante and all blinds and further bets in the side pot.

If a player is all in for part of a blind, all antes go into the main pot.

" If the aircraft is not being hijacked, the pilot should not squawk 7500 and should inform the controller accordingly.

If we assume the controller C, the plant P, and the sensor F are linear and time-invariant ( i. e., elements of their transfer function C ( s ), P ( s ), and F ( s ) do not depend on time ), the systems above can be analysed using the Laplace transform on the variables.

If u ( t ) is the control signal sent to the system, y ( t ) is the measured output and r ( t ) is the desired output, and tracking error, a PID controller has the general form

If a state is not observable, the controller will never be able to determine the behaviour of an unobservable state and hence cannot use it to stabilize the system.

If two devices overwrote the same memory location in a conflict, and the hard disk controller relied on this location ( the HDD controller often being the 2nd conflicting device ) there was the all-too-common possibility of massive data corruption.

If the flash controller does not track the total number of reads across the whole storage device and rewrite the surrounding data periodically as a precaution, a read disturb error will likely occur, with data loss as a result.

If, when accelerating, the tire loses traction, the ABS controller can detect the situation and take suitable action so that traction is regained.

If a CPU or controller or bus failed, the disk was still reachable through alternative CPU, controller, and / or bus.

If a brittle bar breaks, it interrupts a circuit which causes the system controller to immediately stop the system.

If the head fails to move as expected or upon moving cannot track the disk surface correctly, the disk controller may attempt to recover from the error by aborting the operation, at times causing an audible " click ".

If plugged into the second controller port, the SNES mouse could be used for this feature.

If the load were not predictable, on the other hand, the motor's speed might vary as a function of the load as well as of the voltage, and an open-loop controller would therefore be insufficient to ensure repeatable control of the velocity.

If the data has been deleted by the normal procedures of the business by the time the data controller responds to a request, that data cannot be supplied.

If another player accumulates more shares in a company that the current president, he acquires the President's certificate ( with attendant side-effects for both players regarding certificate limits ) in exchange for his own lesser shares, and becomes the new controller of the corporation.

* If possible, comply with the controller ’ s clearance, e. g. turn to intercept an airway or localizer, at the same time as responding to an RA.

If a system is not observable, this means the current values of some of its states cannot be determined through output sensors: this implies that their value is unknown to the controller and, consequently, that it will be unable to fulfil the control specifications referred to these outputs.

If the contestant got the question right, they became the new controller and the outgoing controller lost a " life ".

If the contestant answered incorrectly, the controller retained control and the contestant lost a life.

If a controller found a question they were sure they knew the answer to, they could " trap " another contestant of their choice, answer the question themselves, and, if correct, cost the trapped player a life.

If wrong, the trapped player assumed control and the outgoing controller loses a life.