The Tempest - Facts, Themes, and Analysis

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you get this result: Dim a, b, c As Double a 1 : b 0 c a / b Console.WriteLine( _ Have math rules _ vbCrLf _ been repealed?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.