However, being undefined, should not appear in an expression, and care should be taken in simplifying expressions in which variables may appear in exponents.

However, there are expressions in terms of more familiar variables such as temperature and pressure

However several of the examples below rely on the fact that many expressions do not immediately return success or failure, returning values in the meantime.

However, since Perl 5. 10 ( released in December 2007 ), Perl regular expressions can be recursive.

However, most humans do understand their facial expressions and some of their natural hand gestures, such as their invitation to play.

However, in the Russian Empire expressions of Ukrainian culture and especially language were repeatedly persecuted, for fear that a self-aware Ukrainian nation would threaten the unity of the Empire.

However, Creasy has claimed: " The enduring importance of the battle of Tours in the eyes of the Moslems is attested not only by the expressions of ' the deadly battle ' and ' the disgraceful overthrow ' which their writers constantly employ when referring to it, but also by the fact that no more serious attempts at conquest beyond the Pyrenees were made by the Saracens.

However, note that depending on the language and the function, NaNs can silently be removed in expressions that would give a constant result for all other floating-point values e. g. NaN ^ 0, which may be defined as 1, so in general a later test for a set INVALID flag is needed to detect all cases where NaNs are introduced ( see section Function definition below for further details ).

However, the lords concerned had earlier turned London into an armed camp, and the public expressions of amity seemed not to have lasted beyond the ceremony.

However the 1962 publication of Elroy Bundy's ground-breaking work Studia Pindarica led to a change in scholarly opinion — the Odes were no longer seen as expressions of Pindar's personal thoughts and feelings, but rather as public statements " dedicated to the single purpose of eulogizing men and communities.

However in expressions that involve terms with other types of factors than constants and powers of variables, the notion of constant term cannot be used in this sense, since that would lead to calling " 4 " the constant term of, whereas substituting 0 for x in this polynomial makes it evaluate to 13. so

However, after the coup faltered, the pair “ issued expressions of firm support for Khánh somewhat belatedly ”.

However, at about the time of Napoleonic Wars " military " began to be applied to armed forces as a whole and in the 21st century expressions like " military service ", " military intelligence " and " military history " encompass naval, marine and air force aspects.

However many nouns of this type also have countable meanings or other contexts in which a plural can be used ; for example water can take a plural when it means water from a particular source ( different waters make for different beers ) and in expressions like by the waters of Babylon.

However, individual words and expressions survived until after World War II, when the region became Polish.

However, on October 28, 2008, McKenna said that he would not be seeking the leadership, saying " Although I have been deeply moved by expressions of support for me from across the country, I have not been persuaded to change my long-standing resolve to exit public life for good ," and

However, recent research indicates a man's smile may or may not be most effective in attracting women, and that facial expressions such as pride or even shame might be more effective.

The greater degree to which a person's pupils mirror another predicts a person's greater score on empathy. However, in disorders such as autism and psychopathy facial expressions that represent sadness may be subtle, which may show a need for a more non-linguistic situation to affect their level of empathy.

However, because expressions are closely tied to emotion, they are more often involuntary.

However, Anatole France contests Sainte-Beuve's theory: he claims that Chénier's poetry is one of the last expressions of 18th-century classicism.

However its syntax and matching abilities differs significantly from ones of ordinary regular expressions.

However, modern language standards such as C99 and Fortran 2003 have incorporated IEEE 754 floating point support and now exactly specify the semantics of double extended (" long double ") precision expressions to avoid such reproducibility problems.

However, it borrows words and expressions of many other languages, with over 500 words of Genoese ( Ligurian ) and Hebrew origin.

However, crud can also stand for " Corrosion Related Unidentified Deposit " and similar expressions and is commonly used with no relation to the Chalk River plant.

However, for convenience we will stick to the idea that information can be classified according to Table 1.

However, the surface temperature gradient can produce erroneous vapor-pressure measurements for the bulk liquid helium unless precautions are taken to isolate the tube ( which passes through the surface to the vapor pressure bulb ) from the liquid helium surface.

However, the healthy inventory position of the textile industry lends support to the broadly expressed belief that improvement in that industry can be expected by the second half of 1961.

However, it is essential that the various mathematical symbols used in the equations be understood so that the mathematical processes can be done properly and in their correct order.

However, the displacement of the cylinder can be converted to cubic centimeters.

However, the formation of organically bound iodine, mainly mono-iodotyrosine, can be accomplished in cell-free systems.

However, the leveling operation can be maintained and controlled remotely with no mechanical or optical contact with the platform.

However, this difficulty is not too serious if it is realized that a surveying team can establish a true north base line with a few days' work.

However, the teacher can only go so far if the attitude of the community and the family is anti-intellectual.

However, one can argue that no such control is necessary as long as one pretends that the anti-trust laws are effective and rational.

However much we may have to criticize liberal theology's constructive formulations, the theology we ourselves must strive to formulate can only go beyond liberalism, not behind it.

However, many consequences of treatment-unit additivity can be falsified.

However, certain critical interlocutory court orders, such as the denial of a request for an interim injunction, or an order holding a person in contempt of court, can be appealed immediately although the case may otherwise not have been fully disposed of.

However, no direct connection can be demonstrated, and the similarity of the abaci may be coincidental, both ultimately arising from counting with five fingers per hand.

However, such apparent simplifications can perversely make a script more complicated.

However, the opposite can also be true-An opponent can turn a positive statement into a bad one, if the speaker uses ambiguity ( intentionally or not ).

However, many DSCs, and also go-to systems, can work in conjunction with laptop sky programs.

However, it was held by the Supreme Court that an affidavit can be used as an evidence only if the Court so orders for sufficient reasons.

However, non-arable land can sometimes be converted into arable land.

However, anxiety should not be confused with fear, it is more of a dreaded feeling about something which appears intimidating and can overcome an individual.

However a comparable performing digital system is more complex and can require more bandwidth than its analog counterpart.

However, in digital systems, degradation can not only be detected but corrected as well.

However, the algorithm can be improved by adopting the method of the assumed mean.

However, some alloys can also have their properties altered by heat treatment.