Determe Longest Repeating Cycle In A Decimal Expansion?
Jul 3, 2009
Today I encountered this article about decimal expansion and I was instantaneously inspired to rework my solution on Project Euler Problem 26 to include this new knowledge of math for a more effecient solution (no brute forcing). In short the problem is to find the value of d ranging 1-1000 that would maximize the length of the repeating cycle in the expression "1/d".
Without making any further assumptions about the problem that could further improve the effecienty of solving the problem I decided to stick with[code]...
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Dec 7, 2010
I am trying to write a program to calculate the value of sin x using sin (x)= (-1)^n*x^(2n+1)/(2n+1)! I can't seem to get the factorial part to work
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Jun 27, 2012
What is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
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Dec 28, 2011
I have a not too complicated problem which I do not know how to solve in vb2010. Currently I have a recurive routine for finding files/and or searching. With a recursive routine I never complete the call until the end and process growth is significant enough to radically slow down the process with the now large stack. To make maters worse, I use precoding routines which will take wildcards. which are these:
[Code]...
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Jul 12, 2011
I have a bit of a weird issue. We use DevExpress controls to do all our Windows Form development. Anyway, I found a perfect use for the DataRow.SetParentRow/GetParentRow methods in my grid. So I created a DataRelation, added it to the DataSet and bound it as the data source for my grid. The issue is I now find this:On my grid. It seems to be the DataRelation (when I mouse over it the tooltip is the DataRelation name).
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Mar 5, 2010
split the string into seperate words which i have done. however i also need to find the longest and shortest word which i just can't do and its driving me mad.
Private Sub btnQ5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnQ5.Click
Dim enterText As String
[Code]....
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May 21, 2011
Anyone can give the coding for finding the longest & average length?(displayed in a messagebox)
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Jan 17, 2012
I have 6 array lists and I would like to know which one is the longest without using a bunch of IF STATEMENTS."if arraylist.count > anotherlist.count Then...." <- Anyway to do this other than this?
Examples in VB.net or C#.Net (4.0) would be helpfull.
arraylist1.count
arraylist2.count
arraylist3.count
arraylist4.count
arraylist5.count
arraylist6.count
DIM longest As integer = the longest arraylist should be stored in this variable.
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Apr 26, 2011
having problems with my code it is showing wrong values on the shortest , longest and average sentence the values are not corresponding with my sentences.I need help this my code:
[Code]...
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Jan 22, 2009
I placed a datagrid in my form which l retrive data from my sql. i am using oledb connection. if i run the form i can retrive the data but i am not getting the data in the grid at first ,there is a "+" sign, i have to clik that then it shows the table name and after clicking the table name i can view the data displays in the grid..
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Dec 20, 2010
how do you convert a decimal ( decimal place holder = dot) to a decimal (decimal place holder =comma)?
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Oct 19, 2010
OdbcDataReader in showing decimal fields Decimal separator disappear with DB2 dsn
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Apr 25, 2011
what is the code for finding the shortest,average and longest sentence form the text box
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Aug 27, 2009
After converting all degrees-->decimal, and decimal-->hours, how can i use Tan, Cos and Sin formula in vb.net? I want the user must enter an input (which it is a coordinat-->i already convert the degrees-->decimal value as suggested by stanav and paul.
The questions like this (i only calculate on paper but dont know how to implement in code):
Input user need to enter:
-latitude local (e.g. 1.4875)
-longitude local (e.g. 103.3883333)
[CODE]...
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Jan 17, 2011
My user requests to change the . on the numpad to a when entering text in a multiline textbox.So I was thinking about the KeyDown event.To determine if the numpad . was pressed I can do something like this [code]But now how do I change the returned charachter as a , ? All e.Key... properties are ReadOnly. The KeyPress events let me change this by providing e.KeyChar, but in that event I can't check for the numpad .
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Apr 17, 2010
How would I go about rounding up decimal numbers to the nearest 2 decimal places? For example $7.0000032 would be $7.01 In theory, VB would make it $7.00 but if it is > $7.00, I want it to reflect that to the nearest penny... so $3.0000001 would be $3.01
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May 22, 2011
After I input a few sentences in a textbox, I need to find the longest sentence in the textbox by clicking a button. The longest sentence should be displayed in a MessageBox.
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Mar 4, 2011
VS 2008 08/10 counting vowels in each word,longest/shortest word?
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Oct 28, 2011
Here's a list example
SortedList name = test
"nothing" | 0
"something" | 1
How can I go about running a for each loop or something to add each first column in test to, say a listbox.
Listbox should just have listed.
nothing
something
I tried
For Each i In text.Values
lbTest.Items.Add(i)
Next
But that produces:
0
1
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Nov 5, 2008
Just had a question regarding a Windows Form Application in Visual Studio 2008.I was wondering if it is possible to have a RichTextBox and have a < (previous) and >(next) button. When the user selects the Next button, a new blank RichTextBox will be displayed, when the user selects previous button, the prevoius RichTextBox w/ whatever text was in there before will be displayed.
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Jan 15, 2010
In Visual Studio 2005 Visual Basic, I want to create an exe (without any forms) that will cycle through each file in a folder. I have not found any method of cycling through file names in a folder.
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Feb 9, 2011
Now what I am trying to do is to find cycles in my graph. I have a user drawn graph using lines. Now what I want is to find out if any cycles exist in the graphs. My idea is to find a way to recognize a closed shape and then fill it in. I get this idea from ms paint , where if you draw shapes, the lines must intersect each other and form a cycle for the color to be in.
[Code]...
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Feb 27, 2009
I am familiar with the VB6 ADO way of dealing with SQL queries and looping through the record set results.
However, what is the correct way to query a server, cycle through the results, and dispose of my query in VB.Net? All the ways I have been using seem to be unstable and crash randomly.
I have been using the following code:
Public Function GetSQLTable(ByVal strSQL As String) As DataTable
Dim table As New DataTable
Dim adapt As SqlDataAdapter
[Code].....
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Oct 20, 2011
how can I step in a for cycle on the following index?
f.e.
for i = 0 to 10
if (some condition) then next i
next
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Mar 30, 2011
If I have the code:Dim x as Decimal = 100.0m
Is it casting from a double to a decimal implicitly. How would I do this explicitly in vb.net?
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Dec 21, 2010
1) One Decimal Varibale stores a decimal value
2) The value must be converted in string ( some time the comma is used as decimalplaceholder some time the dot)
3) the user modifies the value
4) i need to riconvert the string back in decimal
how can i do this
so:
Variable 123.34D ----> textBox 123,34 or 123.34 -----> variable 123.34D
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Jun 22, 2010
I have a subroutine with a for i as integer=1 to 128 it should send 128 mouse clicks to another application sometimes it does sometimes it doesn't (it works well until it reaches 64 then the numbers go crazy). i suppose that because vb debugger reports that for my form there are 2 threads running (i have a Core2Duo processor and i've read somewhere that multithreading has something to do with the processor).Is there anything i can do to make the cycle reach the 128 clicks? i've tried setappartmentstate to STA, i've tried synclock monitor.enter nothing works, it fails it returns from the subroutine to where it started from and the next time the same story
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Dec 22, 2011
My application creates MDI Children programatically. I have a frmBrowser as an MDI Child which I create multiple instances of. There are several other MDI children in the MDIParent. How do I only cycle through the frmBrowser MDI children?
For Each Child As frmBrowser In frmMain.MdiChildren
'perform action on child
Next Child
The code above gives an error for all the Child that aren't of the type frmBrowser.
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Jul 29, 2010
i need to count the number of iterations which occure in algorithms Blowfish, DES, and RC4.
blowfish i use this class DES i use DESCryptoServiceProvider and for RC4 i use this class Public Shared Function RC4(ByVal bytes() As Byte, ByVal key() As Byte) As Byte()
[Code]...
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Jun 13, 2010
l try to cycle the number from 0 - 100 using RANDOM methhod.but everytime push the button , the different number come out..how to get same number when the button was press.
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