NaN, Infinity, and Divide by Zero in VB.NET

Beginning programming books usually include this warning: Dont divide by zero! Youll get a runtime error! Things have changed in VB.NET. Although there are more programming options and the calculation is more accurate, it isnt always easy to see why things happen the way they do. Here, we learn how to handle division by zero using VB.NETs structured error handling. And along the way, we also cover the new VB.NET constants: NaN, Infinity, and Epsilon. What Happens If You Run 'Divide By Zero' in VB.NET If you run a divide by zero scenario in VB.NET, you get this result: Dim a, b, c As Double a 1 : b 0 c a / b Console.WriteLine( _ Have math rules _ vbCrLf _ been repealed? _ vbCrLf _ Division by zero _ vbCrLf _ must be possible!) So whats going on here? The answer is that VB.NET actually gives you the mathematically correct answer. Mathematically, you can divide by zero, but what you get is infinity. Dim a, b, c As Double a 1 : b 0 c a / b Console.WriteLine( _ The answer is: _ c) Displays: The answer is: infinity The value infinity isnt too useful for most business applications. (Unless the CEO is wondering what the upper limit on his stock bonus is.) But it does keep your applications from crashing on a runtime exception like less powerful languages do. VB.NET gives you even more flexibility by even allowing you to perform calculations. Check this out: Dim a, b, c As Double a 1 : b 0 c a / b c c 1 Infinity plus 1 is still infinity To remain mathematically correct, VB.NET gives you the answer NaN (Not a Number) for some calculations such as 0 / 0. Dim a, b, c As Double a 0 : b 0 c a / b Console.WriteLine( _ The answer is: _ c) Displays: The answer is: NaN VB.NET can also tell the difference between positive infinity and negative infinity: Dim a1, a2, b, c As Double a1 1 : a2 -1 : b 0 If (a1 / b) (a2 / b) Then _ Console.WriteLine( _ Postive infinity is _ vbCrLf _ greater than _ vbCrLf _ negative infinity.) In addition to PositiveInfinity and NegativeInfinity, VB.NET also provides Epsilon, the smallest positive Double value greater than zero. Keep in mind that all of these new capabilities of VB.NET are only available with floating point (Double or Single) data types. And this flexibility can lead to some Try-Catch-Finally (structured error handling) confusion. For example, the .NET code above runs without throwing any kind of exception, so coding it inside a Try-Catch-Finally block wont help. To test for a divide by zero, you would have to code a test something like: If c.ToString Infinity Then ... Even if you code the program (using Integer instead of Single or Double types), you still get an Overflow Exception, not a Divide by Zero exception. If you search the web for other technical help, you will notice that the examples all test for OverflowException. .NET actually has the DivideByZeroException as a legitimate type. But if the code never triggers the exception, when will you ever see this elusive error? When You'll See DivideByZeroException As it turns out, Microsofts MSDN page about Try-Catch-Finally blocks actually uses a divide by zero examples to illustrate how to code them. But theres a subtle catch that they dont explain. Their code looks like this: Dim a As Integer 0 Dim b As Integer 0 Dim c As Integer 0 Try   Ã‚  Ã‚  a b \ c Catch exc As Exception   Ã‚  Ã‚  Console.WriteLine(A run-time error occurred) Finally   Ã‚  Ã‚  Console.ReadLine() End Try This code does trigger an actual divide by zero exception. But why does this code trigger the exception and nothing weve coded before does? And what is Microsoft not explaining? Notice that the operation they use is not divide (/), its integer divide (\)! (Other Microsoft examples actually declare the variables as Integer.) As it turns out, integer calculation is the only case that actually throws that exception. It would have been nice if Microsoft (and the other pages that copy  their code) explained that little detail.

The Change For Transformative Change - 795 Words

Before Winston Peters selected Jacinda Ardern as prime minister, the consensus was that there had been no dramatic shift. National was down a smidgen, Labour was up, NZ First was down a bit and the Greens were lucky to survive. Peters was the kingmaker, but there hadnt been a wholesale rejection of the status quo. This remains the best description of the 2017 election result. But since Peters decided on Labour, analytical discipline has started to break down. Somehow, the preference of one man is now seen as a national mood for transformative change. In a way, it is easy to see how this has happened. In 2015, a youthful and congenial Justin Trudeau stormed in to power in Canada. His Liberals dominated the popular vote in a landslide†¦show more content†¦In fact, this kind of result could have happened in the previous three elections. In 2008, for example, when National swept to power, NZ First won just over 4 per cent. Not reaching the 5-per cent threshold, Peters and chums crashed out of Parliament. Votes for NZ First were disregarded and had no influence on the makeup of Parliament. But, had the party won another 30,000 votes that year, things may have been different. Together, National and ACT would have won only 59 out of 122 seats. The Clark Government already had confidence and supply from United Future, NZ First and the Greens. Had it been able to add the MÄ ori Party to its existing alliance, it could have clung to power. In 2011, we saw the formation of the so-called Conservative Party. It received almost 60,000 votes that year, running on a similar platform to NZ First. If half of those votes went to NZ First instead, Labour may have been able to pull off the formation of a Government. Then, in the 2014 election, the Conservative Party received more than 95,000 votes. Had half of those gone to NZ First, a Labour-led Government was possible then too. Had Hone Harawira also hung on in Te Tai Tokerau, a change in Government would have been even more likely. Every election under MMP will be close. While the system is meant to be proportional, the party vote and electoral seat thresholds introduce quirks into the system. There is an element of randomness in theShow MoreRelatedCarla And Kent Acceptance Of Transformative Mediation1368 Words   |  6 PagesCarla and Kent acceptance of Transformative Mediation In the case of the Suburban General Hospital, consultants, Carla who manages emergency shelters and clinics and Kent a technology consultant are in conflict over the new patient billing software that Kent developed and wants implemented in the hospital’s clinics and doctor’s offices, for he feels the software is ready and will be widely accepted by the physicians. 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Decomposition Poetry and Beggar Look Essay Example For Students

Decomposition: Poetry and Beggar Look Essay Choose a poem which a persons experience. Explain hoe the poetic techniques to describe the experience make the poem more interesting. Decomposition Is a poem written Cultivar Chose. His poem Is about a photograph of a beggar in Bombay. The poet talk about his first though of when he was taking they photo and know the poem is reflects on why he thinks the photograph was bad. He is able to get experience more visual with the use of poet techniques. The techniques the uses in the first stanza is simile about how the beggar look in Bombay. : His shadow thrown aside like a blanket. This description of the beggar suggests poverty and that beggar lives on the street, also that no one one cared about the beggar, as he was thrown aside suggesting discarded and not used any more. From the Simile and the word choice this makes the poem more Interesting as we have a feel for the beggar situation and that he is being treated very badly and not like a human beginning In the second stanza the poet talks about the beggar appearance. : Arms and legs loud be cracks in the stone This metaphor creates the image that the beggar is very thin and broken as the crack in stone suggest that he is very small and can fit in it and that the stone has been broken and the stone is a symbol of the beggar. The beggar has been homeless for a long time as Its the, ants Journeys, the flies descents. The beggar is use by and flies this suggests that the beggar hasten moved in a long time and give the sense of him being dead or dirty as insects like dead or dirty things. This give the poem a sad idea of the beggar that will keep the reader Interested as he wants know If the beggar get treated better by society. The poet uses a metaphor to explain and give the visual image of the beggar as, he lies veined into the street, a fossil man. This technique makes the reader symmetric for the beggar, as they know that the man (beggar) has become euthanized. The idea vein In to stone shows that the beggar has been reduce to stone and that the once lived as he is know a fossil reminding us that there was a life there once. The poet has used enjambment in the third stanza. : Behind him there is a crowd an old man asleep on the pavement. The long sentence shows that crowd passing him Like there Is nothing there and the since there is no full stops this show that there is no one stopping at the beggar. The poet has made the poem more interesting for the reader as he giving the since that the beggar is visible and that know cares for him as they dont want t help him. In the forth stanza flirts the reader thought the photo was a goof idea but after revisiting the photo he know understands what he did wrong. l thought it them a suffering and not about exploiting money and satisfaction from someones suffers and misfortune. The poet shows his feelings towards what he thinks about the beggar with his word choice you can see how bad he feels. : Glibly. As it shows that the poet regrets his comment on the photo as he know become aware of the crowd not paying him any attention to his suffering and that he want to make art from someones suffering and hunger. In the last stanza the poet talks about the emotion he felt as he felt guilty about thinking picture of the beggar. : Weeping into a pillow chides me now for my presumption. The poet is distraught over the photo and the word, Glibly has annotations of reprimand this how that the poet was expressing his disapproval of taking the photo. .u587c409cc4f7528356171a17ff855354 , .u587c409cc4f7528356171a17ff855354 .postImageUrl , .u587c409cc4f7528356171a17ff855354 .centered-text-area { min-height: 80px; position: relative; } .u587c409cc4f7528356171a17ff855354 , .u587c409cc4f7528356171a17ff855354:hover , .u587c409cc4f7528356171a17ff855354:visited , .u587c409cc4f7528356171a17ff855354:active { border:0!important; } .u587c409cc4f7528356171a17ff855354 .clearfix:after { content: ""; display: table; clear: both; } .u587c409cc4f7528356171a17ff855354 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u587c409cc4f7528356171a17ff855354:active , .u587c409cc4f7528356171a17ff855354:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u587c409cc4f7528356171a17ff855354 .centered-text-area { width: 100%; position: relative ; } .u587c409cc4f7528356171a17ff855354 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u587c409cc4f7528356171a17ff855354 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u587c409cc4f7528356171a17ff855354 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u587c409cc4f7528356171a17ff855354:hover .ctaButton { background-color: #34495E!important; } .u587c409cc4f7528356171a17ff855354 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u587c409cc4f7528356171a17ff855354 .u587c409cc4f7528356171a17ff855354-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u587c409cc4f7528356171a17ff855354:after { content: ""; display: block; clear: both; } READ: The Love Song of J. Alfred Prufrock Argumentative EssayThis make the reader more interested about the poem as they know might feel they have a connection with the poet as they feel they know him and feel for him with but know taking the photo was fro the use of the writer techniques. Decomposition is a poem which the writer uses poetic techniques to interest the reader and have more influence over them with his message as think about something before doing it and that his techniques have made me want to read more of his poem as Decompositions was very engaging.

Travel agencies free essay sample

Travel agency issues On one hand travel agencies can take a great advantage from the internet but on the other hand it is one of their biggest enemies. Because there are so many negative articles about a few travel agencies and people are losing their trust in them. So they are strat planning their own trip not using any agencies. So it is a really hard Job to build up a good image about their company especially when they are new in business. The agency has to earn people trust, run a friendly image about themselves and one of the most important thing they have to search for reliable employees. And an other point to mention about the disadvantages of the internet is that customers can book directly from it. The reason is that ninety-nine per cent of the time making a reservation via the internet is cheaper. So hotel wouldnt pay a travel agent upwards of 25 per cent commission, when they can Just sell their services and have more money from it. We will write a custom essay sample on Travel agencies or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Tour operator issues Nowdays we are living in a virtual generation. Especially the younger people, they communicate via the internet, having their smartphones and all the new technological stuff. They do not care much about reading, visiting museums and to get know other countries or cities historical past. That is a huge problem for tour operators because they can not organise a trip if people Just want to relax and do some spa all day. Tour operators are managed to introduce Australia to you, visit museums, special events, historical memories and so on. So they have get their attention again to make successful trips.

Joseph Stalin & Mao Tse-Tung essays

Joseph Stalin & Mao Tse-Tung essays Josef Stalin is perhaps the most praised, reviled and recognised dictator in the modern world. His influence as such has reached across the globe, affecting leaders and citizens alike. Many of his techniques have been adopted by prominent leaders, today and in the past. One such example is fellow socialist Mao Tse-tung. Mao can fairly be regarded as the principal architect of the new China. His Marxist philosophies and strong leadership formed one of the strongest nations in the world. However, the similarities between Stalin and Tse-tung reach further than these surface facts. With the death of Vladimir Lenin, the struggle for authority within the USSR narrowed to a contest between Trotsky, the brilliant leader of the Red Armies during the Civil War, and Stalin, general secretary of the Communist Party. Stalin eventually emerged as virtual dictator of Russia. In order to consolidate his position, he gradually built up a cult of personality around himself, one which would eventually (and literally) let him get away with murder. According to composer Dimitri Shostakovich, Stalin was an ordinary, shabby little man: short, fat, with reddish hair. His face was covered with pock marks and his right hand was noticeably thinner than his left. He kept hiding his right hand. He didnt look anything like his numerous portraits. This raises a question easily answered. Why, then, do the portraits represent him as something he is not, as something greater and more radiant than he could ever be? It was his own insecurity at first - new to command, he needed the people to look up to him as something strong, solid and dependable, something greater than the run-of-the-mill politicians. As things progressed, however, Stalin managed to achieve the status of a demi-god. While at first it was he that craved security, now the public looked up to him as their protector. The public figure was at once stern and frien...

The human resources management practices in the UK Essay

The human resources management practices in the UK - Essay Example According to the research findings it can therefore be said that the practices of HRM are particularly required since companies are engaged in activities that are no more restricted to the local regions but have their presence globally. In order to uphold significant competitive advantage and manage the global pressure, companies need to focus on its HRM practice effectively. The human resources management practices involve certain core activities that are common to every country irrespective of the businesses being in prevalence in the nation. These activities include human resource planning, job analysis, recruitment and selection, performance management and appraisal, career development, pay management, employee relations, and training and development all that are associated with the human resource management in different countries with probable differences in the manner the measures get executed, and thus help in a complete and integrated management of businesses in every country . Considering the human resources management practices in the United Kingdom (UK), studies reveal that several changes have taken place over the years in the frameworks of regulation, globalization as well as the pressures associated with the need for costs reduction. Sparrow had suggested that the key responsibility of the HRM in this context is to involve people in the right manner such that they get to learn and understand significant issues and accordingly cooperate towards effective performances. (Cesyniene, 2008, p.43). The present study focuses on the human resources management practices in the UK, and discusses and analyses on the cultural, political, economic and social factors that tend to affect such practices within the country. Human Resources Management in the UK: An Overview: Both the government of the UK as well as their membership of the EU have led to higher degrees of regulation in the country that is reflected on the human resources management practices of UK. Th e UK government follows strict legislative rules on labor activities that are known to bring significant improvements as far as the rates of strikes and absence at workplaces are concerned. Studies reveal that strike activities were reduced to great extents in during the time periods of 1999/2001. Also, the numbers of working days that are lost were found to reduce from 330 during the 1980s to as less as 11 days in this period. However this regulation was again found to get disrupted due to labor unions and strife during 2004-2006. Apart from the issues of regulation there are other factors associated with the HRM practices in the UK. Although an Equal Pay Act has been acted in the country focusing on equal value of men and women, yet there prevails a gender gap in the country and differences in wages and salaries have also been obtained (Cesyniene, 2008, pp.43-44). Individual innovative measures of HRM practices are also found in the UK where the managers of different organizations tend to employ different programs involving the employees of the organization effectively and trying to focus on employment relations as well (Bratton & Gold, 2001, p.31). Policies and procedures in regard to HRM practices are considerably taken concern of in the UK. The HR policies state the activities needed to be followed for particular issues. The procedures on the other hand determine ways to implement the different policies as decided the HRM teams for different organizations. The policies and procedures are mandatory for organizational employees to follow

Leadership in Shia Islam, Orthodox Judaism, and Roman Catholicism Essay

Leadership in Shia Islam, Orthodox Judaism, and Roman Catholicism - Essay Example The imamate history began with Ali, who is also accepted by Sunni Muslims as the fourth of the "rightly guided caliphs" to succeed the Prophet. Shias respect Ali as the First Imam, and his children, beginning with his sons Hassan and Husain, continue the line of the Imams until the twelfth. When Ali was six years old, he was invited by the Prophet to live with him, and Shia believes Ali was the first person to make the declaration of faith in Islam. Ali also slept in the Prophets bed on the night of the hijra, when it was feared that the house would be attacked by unbelievers and the Prophet stabbed to death. He fought in all the battles the Prophet did, except one, and the Prophet chose him to be the husband of one of his favorite daughters, Fatima. The Shia Imams represent the picture of both the mysterious and transparent dimensions of Islam. The authority of Imams includes both this worldly and other worldly affairs. One of the most significant doctrines underlying the possibility of the Imam’s comprehensive authority is their infallibility. The Sunnis believe that the Imams are infallible to any sin. For them if the Imams were considered to be the subject to sin and error, then there will not be any difference between the leader and the led which will paralyze the structure and operation of their religion. The followers are well advised to keep the authority of the Imam intact since though the Imam only the God is dispersing duties blessings to the followers as per the Shia’s belief. Only the Imams have the authority to reveal the hidden meanings of Qur’an. Since the Imams provide continuous authoritative interpretations of the Qur’an they are supposed to be free of any sin or error. It is a cond ition for Imam. The Imams are considered to be the charismatic leaders through their association with Mohammad as messenger of Allah. Jewish People believe in good and evils and they think that goodness