Developing Fibonacci Series In VB?

Aug 31, 2009

I am trying to write a code for Fibonacci series in VB, but some of the values in my series are incorrect.Below is what I have so far.



Create A Program In .net About Fibonacci Series?

Jun 21, 2010

i want to know how to create a program in about Fibonacci series

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Apr 23, 2010

Have to write a program that would display the Fibonacci series with the condition that the inputted number from the user is also the number of Fibonacci numbers that would be displayed. And 0 is invalid.


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How To Display Fibonacci Results

Mar 2, 2009

I can get the results if I plug a number in for i, but I get them as a string for some reason.
Private Sub displayButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles displayButton.Click
'display Fibonacci results
Dim fib(10) As Integer
Dim i As Integer
Dim fibn As String

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VB 2010 Fibonacci Using An Array?

May 21, 2011

The assignment is this: User inputs the number of fib numbers they would like displayed. The program takes this number and produces that amount of fib numbers using a function and an array. Function can not display the results, that has to be done in the button's click sub.

Now, I really thought I had this array stuff nailed, I have done the random lottery number program and all that... but I think somewhere along the time it has taken me to get this messed up code I have written, it has also confused me to no end. I started off just being confused about how to display all of the variables in the array, now I am just not sure what is going on. I have successfully written this program without the use of an array prior to this.

Option Explicit On
Option Strict On
Option Infer Off


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Display Fibonacci Sequence In ListView

Oct 19, 2009

I am supposed to design and develop a program to compute the first X integer numbers of the sequence, where the X value is entered in a numeric updown Control only using values 3-150. It is supposed to display the results in a listview control that has one column. I believe that I have the code correct but I am not sure how I am supposed to add items to the column in the ListView box. I have reviewed my text and there is information on creating the listview box and adding columns but it does not show an example on adding data to the column in the listview box. I can compile it with no errors but I can't debug it.

Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Dim fib1 As Double = 0
Dim fib2 As Double = 1
Dim counter As Double
Dim result As Double
result = fib1 + fib2
[Code] .....

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Fibonacci Numbers And The Golden Ratio

Oct 15, 2011

So I need to write a program that will approximate PHI (the golden ratio) using Fibonacci Numbers. It has to be within a negative power of 10 (between -1 and -16) oh PHI. So for example, if I put -2 into the input, the approximation of PHI would have to be with 10^-2 of the number that we're using of 1.618033988749895. Also, we need to show how many Fibonacci terms that were used to get to that number and the difference that the number that we approximated is to PHI.


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Homework - Fibonacci Sequence In .net Using Loop?

Apr 3, 2011

displaying the first 10 Fibonacci numbers. My code displays the following result: 1, 2, 3, 5, 8, 13, 21, 34, 55 and I need it to also display the first two Febonacci numbers (0 and 1). How would I do that?

Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As Integer = 0


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Write A Function To Print The Fibonacci Value At A Given Position?

Mar 11, 2010

Write a function to print the Fibonacci value at a given position in the should write two versions of the function both of wich must be named Fibonacci(overload functions).the first version should be implemented using a for loop.the second version should be implemented using do until.

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Create Console Application To Calculate 23 Numbers Of Fibonacci?

Sep 24, 2010

how to create console application to calculate 23 numbers of fibonacci?This is the script I had done but facing an issue:

Module Module1
Sub Main()
'area to declare all integer
String inputstring;


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Fibonacci Numbers Loop And Output To Multiple Labels?

Mar 29, 2011

I have attached the form in initial state. What you don't see in the initial state is 10 hidden labels. I want the loop(which I am calling as a function??) to compute the numbers and display in the labels. Example, if I input 1 for the first term, 3 for the second term and 4 for the total terms, the first 4 labels should become visible and have in them one solution each:

1 - 1
2 - 3
3 - 4
4 - 7

Am I way off with what I want to do? Cannot use arrays, must be a loop.This is the compute button:

Private Sub BtnComp_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles BtnComp.Click


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Uses Of Arrays In Programing - Mathematical Concept Such As Fibonacci Sequences?

Feb 7, 2012

I am trying to get a better understanding of the uses of arrays in programing, and have been wondering why do programmers use an array when working with mathematical concept such as Fibonacci sequences? why are arrays so prevalent in coding now a days.

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Exiting Sub - Program Calculate Fibonacci Sequence Which Calculates Numbers Correctly

Feb 2, 2010

I'm trying to create a program which will calculate the Fibonacci Sequence which calculates the numbers correctly however, there are a few problems.

1. When using a Do While...Loop the program becomes non responsive.

2. Kind of dealing with the program becoming non responsive; I am unable to stop the process by forcing the sub to Exit.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Operation.Text = "Calculating...."
EStop = False


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Conversion From String "Fibonacci Demo" To Type 'Integer' Is Not Valid?

Jan 16, 2011

When I use the included code to position an InputBox over the start of a listbox named lb I get the following message: Conversion from string "Fibonacci Demo" to type 'Integer' is not valid.

The code works ok if I remove the L,T, parameters. If i replace L,T with 100,100, I get the same error message.

Dim MyValue, Msg, Title, DefaultVal As String
dim L as integer, T as integer
Msg = "Enter Value > 2 and < 45 to be evaluated"
Title = "Fibonacci Demo"
DefaultVal = "5"


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Fibonacci Numbers: Display First 10 Finonacci Numbers In Sequence

Mar 11, 2012

I am working on an assignment that will display the forst 10 fibonacci numbers in sequence. However when my results are displayed, the numbers are all stacked on top of each other like this: 011235813213455. I have tried to play with it but i can't seem to get my numbeers to space out or even maybe have a comma "," betweeen each number.[code]

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Jul 10, 2011

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Is this possible with .net? If so, is this a correct situation to utilize the GPU?

I'm also using, however all .net examples will apply.

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The application will able to perform Wireless Detection: scanning the area for available wireless network and presenting them to the user of the software, and then user can decide to which network he/she wants to connect.


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Feb 7, 2012

I am new to . I was  developing application in c#. Now i am working in i have a query in How to write compund assignment  in ?

ex :
In C# ,
int a,b,c;

if i did it in means  the value of b is set to false. how do i solve this problem?

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Mar 10, 2010

I have a question about listbox. I want to display a series of * in one row. I know I have to use a loop, but I can not have the asterisk lined in one row.

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How To Get The Series Of Labels

May 15, 2012

I have a form in which there are two checkboxes then based on which check box the user selects a

series of labels and combo boxes are shown. I can't get the series of labels and cbx's to show and

to show when the check box is clicked.[code...]

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Oct 7, 2011

I'm building a website which will have a Spanish and Italian version.

In the past, when building a site which must be available in different languages, I've created a SQL Table like follows:

ID int
EnglishTitle nvarchar(200)
SpanishTitle nvarchar(200)


However, I've found this really time consuming (especially if the client later asks for another language option as a second phase).

What is the best practice for doing something like this, allowing scope for extra languages?

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I'm developing a program that is similar to ATM but I can not keep track of various clients so that each may have their account

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Jul 12, 2009

i developed a very simple application and i need a way for every user to verify that they have paid for it. i would like the simplest method possible. it will be an off-line registration. I am actually looking for a way that I can program this easily myself, and am not interested in third part solutions.

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Dec 29, 2010

I have been assigned a task of exploring unit testing using tools available in the market.My question is how do i write an API that would help in writing unit test cases.Example i can use nunit to write something like this to check whether file exists in the given location.

<Test()> _
Public Sub CheckOutputFileInfo()
ReportPath = "D:temp est.txt"


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Jun 29, 2010

I am looking for best practice for developing new application. Our company has developing VB6 application for customers about 10 years. This application has mostly math calculations and works with MS Access DB. Now we are looking for method how we can develop WEB application with ability to client to download application for local work. Some of customers does not use internet at all from security reasons. So the WEB solution only not enough for US. I understand that WEB and Win.Forms have different user interface, so I am looking for best practice to create engine for both platforms(Web and Forms) . The main task for us is minimization of maintain and designing. Is there any technologies can be used in web and desktop app at the same time(like dll). I do not know how to make next step in order to estimate this project.

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Oct 28, 2009

I am responsible for rewriting an internal tool for my company. I am currently reworking the most time consuming step to run faster which should give me time to re-think the design of the application for a full rewrite as the interstitial version will meet the current needs. I really want to take this opportunity to implement this code using BDD/TDD but I am new to this method of programming in general and especially within the context of .NET. Are there BDD/TDD tools available for .NET? What resources should I look at?

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Nov 24, 2010

Imagine there is a line, in a text file, with three values separated with commas.

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Add Data (2) To Column 1 Of A Series?

Jul 19, 2010

I am using Express I need to produce a chart so am using MSchart object.I am using the following code to try to add data (2) to column 1 of a series

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I do not get an error immediately but then before the form can be refreshed I get a stack to I set this data?

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Jun 14, 2010

I have a strong amount of pictures, which i would like to "protect" by adding watermark on them. Is there any way of adding watermark by using or C# ?

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Sep 16, 2011

I am new to Visual 2010 and cannot seem to find any information about using Charts.I have an array, call it PressureOutputs(1000), which I wish to plot against a second array,e(1000).Can anyone please explain how I would add these two arrays to create a series on an x-y scatter graph (which is already present on the Windows Form Application), or point me to a source of information about how to do this?

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Jan 5, 2011

how to check if numerous textbox's have a value, and then if they all have a value that is greater than zero, and then if they do, execute a command?

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Jul 19, 2009

If used the following code to create three line series and three point series consists of only one point each.

Public Function JYJAD_EVNELOP()
ENVELOP.Series("Zero Fuel").Points().Clear()


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Oct 16, 2010

Program: Visual Basic 2010

Database: MS Access

When I use the following piece of code to delete a single row in a table, it works.

Dim daCcorrente As OleDbDataAdapter[code]...

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How Row From DataGridView Can Be Put Into Series Of Textboxes

Aug 26, 2010

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Trying to write a series of lines to a streamwriter in ASP.NET 3.5 VB.NET but I get an error 'Object reference not set to an instance of an object.' Here is the code

Dim sW As StreamWriter, iX As Integer = 0
For iX = 0 To 5
sW.WriteLine("SomeThing") 'Error occurs here

My goal is to write a write a series of strings in different lines. This seems so simple but I don't see how the reference isn't set; I'm declaring two lines above.

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Does someone here experienced this error: ERROR [58005] [IBM] SQL0902C A system error (reason code = "") occurred. Subsequent SQL statements cannot be processed.sQLSTATE=58005..I'm Trying to make a program that will retrieve data from IBM i Series DB2.I established a code below that will check if the program can connect to the server but the error message above appeared.[code]The error will appear on CheckDB2.Open()

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