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If and filter
If the filter shows amplitude ripple within the passband, the x dB point refers to the point where the gain is x dB below the nominal passband gain rather than x dB below the maximum gain.
If we wish to implement this filter as a digital filter, we can apply the bilinear transform by substituting for the formula above ; after some reworking, we get the following filter representation:
If very small amounts of solution are involved, most of the solution may be soaked up by the filter medium.
If the example filters were required to match the case of the attribute value, an extensible match filter must be used, for example,
If a person ‘ synthesizes ’ a ‘ jet plane landing ’ sound, this is achieved mostly by altering the shape of the mouth to filter the white noise into pink noise by removing the higher frequencies.
If F is a linear function, for instance a filter whose gain and / or delay varies with frequency, then the signal will experience linear distortion.
If λ < sub > c </ sub > is the central wavelength, λ < sub > 0 </ sub > is the central wavelength at normal incidence, and n < sup >*</ sup > is the filter effective index of refraction, then:
If the channel frequency response is flat and the shaping filter has a finite bandwidth, it is possible to communicate with no ISI at all.
If toner spills into the laser printer, a special type of vacuum cleaner with an electrically conductive hose and a high efficiency ( HEPA ) filter may be needed for effective cleaning.
If the transfer function of a first-order low-pass filter has a zero as well as a pole, the Bode plot will flatten out again, at some maximum attenuation of high frequencies ; such an effect is caused for example by a little bit of the input leaking around the one-pole filter ; this one-pole – one-zero filter is still a first-order low-pass.
If the filter response changes linearly with frequency, the final analog output will be proportional to the input frequency, as desired.
If the chosen anti-aliasing filter ( a low-pass filter in this case ) has a transition band of 2000 Hz, then the cut-off frequency should be ≤ 20050 Hz to yield a signal with negligible power at frequencies ≥ 22050 Hz and complete pass of frequencies ≤ 20 kHz ( within the human hearing range ).
If the resulting filter is not causal, it can be made causal by introducing an appropriate time-shift ( or delay ).
If the filter is a part of a larger system ( which it normally is ) these types of delays have to be introduced with care since they affect the operation of the entire system.
If the filter has many coefficients, for example in the case of multidimensional signals such as tomography data, it may be relevant to reduce the number of coefficients by removing those which are sufficiently close to zero.
If the coefficients are symmetrical ( the usual case ), then such a filter is linear phase, so it delays signals of all frequencies equally.
If a precise localization is requested, we need a filter of small width in the signal domain and, via the uncertainty principle, its width in the frequency domain cannot be arbitrary small.
If a spam filter keeps a whitelist, mail from the listed email addresses, domains, and / or IP address will always be allowed.
If it is not exclusive, it prevents email from being deleted or sent to the junk mail folder by the spam filter.

If and is
If the circumstances are faced frankly it is not reasonable to expect this to be true.
If his dancers are sometimes made to look as if they might be creatures from Mars, this is consistent with his intention of placing them in the orbit of another world, a world in which they are freed of their pedestrian identities.
If a work is divided into several large segments, a last-minute drawing of random numbers may determine the order of the segments for any particular performance.
If they avoid the use of the pungent, outlawed four-letter word it is because it is taboo ; ;
If Wilhelm Reich is the Moses who has led them out of the Egypt of sexual slavery, Dylan Thomas is the poet who offers them the Dionysian dialectic of justification for their indulgence in liquor, marijuana, sex, and jazz.
If he is the child of nothingness, if he is the predestined victim of an age of atomic wars, then he will consult only his own organic needs and go beyond good and evil.
If it is an honest feeling, then why should she not yield to it??
If he thus achieves a lyrical, dreamlike, drugged intensity, he pays the price for his indulgence by producing work -- Allen Ginsberg's `` Howl '' is a striking example of this tendency -- that is disoriented, Dionysian but without depth and without Apollonian control.
If love reflects the nature of man, as Ortega Y Gasset believes, if the person in love betrays decisively what he is by his behavior in love, then the writers of the beat generation are creating a new literary genre.
If he is good, he may not be legal ; ;
If the man on the sidewalk is surprised at this question, it has served as an exclamation.
If the existent form is to be retained new factors that reinforce it must be introduced into the situation.
If we remove ourselves for a moment from our time and our infatuation with mental disease, isn't there something absurd about a hero in a novel who is defeated by his infantile neurosis??
If many of the characters in contemporary novels appear to be the bloodless relations of characters in a case history it is because the novelist is often forgetful today that those things that we call character manifest themselves in surface behavior, that the ego is still the executive agency of personality, and that all we know of personality must be discerned through the ego.
If he is a traditionalist, he is an eclectic traditionalist.
If our sincerity is granted, and it is granted, the discrepancy can only be explained by the fact that we have come to believe hearsay and legend about ourselves in preference to an understanding gained by earnest self-examination.
If to be innocent is to be helpless, then I had been -- as are we all -- helpless at the start.

If and implemented
If effective protection were implemented immediately and bongo populations allowed to expand without transfers, then this would create a bigger population of genetically impoverished bongo.
If implemented using remainders of Euclidean division rather than subtractions, Euclid's algorithm computes the GCD of large numbers efficiently: it never requires more division steps than five times the number of digits ( base 10 ) of the smaller integer.
If the implementation of the change should fail or, the post implementation testing fails or, other " drop dead " criteria have been met, the back out plan should be implemented.
If a skip list is used, the insertion time is brought down to O ( log n ), and swaps are not needed because the skip list is implemented on a linked list structure.
If project control is not implemented correctly, the cost to the business should be clarified in terms of errors, fixes, and additional audit fees.
If transmission reliability is desired, it must be implemented in the user's application.
If elimination or substitution measures cannot be achieved, engineering controls and administrative controls, which seek to design safer mechanisms and coach safer human behavior, are implemented.
If not implemented correctly, it presents a security risk to overall platform integrity and protected data.
If this storage and retrieval functionality is implemented, the objects are then said to be persistent.
If the tap is implemented at a digital switch, the switching computer simply copies the digitized bits that represent the phone conversation to a second line and it is impossible to tell whether a line is being tapped.
If this interface is implemented, IOleClientSite, IOleInPlaceSite and IAdviseSink must be implemented as well.
If they were implemented, either as alternative or complementary techniques, an even greater percentage gain might be expected.
If time reversal were implemented as a unitary operator, it would reverse the sign of the energy just as space-reversal reverses the sign of the momentum.
; Multi-level undo: If all user actions in a program are implemented as command objects, the program can keep a stack of the most recently executed commands.
If implemented on a global scale, the inclusion of women in the formal workforce ( like a fortune 500 company ) can increase the economic output of a nation.
If improperly or inadequately implemented, critics worry that such reforms may further disadvantage marginalization groups such as indigenous communities or women.
If banked RAM is implemented, the bank number is selected by the high 3 bits of the FSR.
If the plan is widely accepted by students, parents and alumni, this new plan will be implemented during the 2008-2009 academic year.
If sets are implemented as sorted lists, for example, the naive algorithm for will take code proportional to the length m of S times the length n of T ; whereas a variant of the list merging algorithm will do the job in time proportional to m + n.
If the risk is assessed to be high, then additional measures must be implemented in order to reduce the risk.
If all processes share a single address space, then the only way could be implemented would be to swap the memory pages along with the rest of the task context switch.
If the algorithm is implemented using floating-point arithmetic, then α should get the opposite sign as the k-th coordinate of, where is to be the pivot coordinate after which all entries are 0 in matrix As final upper triangular form, to avoid loss of significance.
If the Oracle database administrator has implemented Oracle RAC ( Real Application Clusters ), then multiple instances, usually on different servers, attach to a central storage array.

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