Math - Produce All The Possible Combinations Of Numbers

Oct 6, 2009

I have 36 numbers in sets of 5. (eg. 1-2-3-4-5, 2-3-4-5-6 etc..) I need to find all the possible combinations of these numbers which total the same sum. For instance the lowest sum would be: 1 + 2 + 3 + 4 + 5 = 15. The highest possible sum is: 32 + 33 + 34 + 35 + 36 = 170. Now every five number combination within these 36 numbers will sum up between 15 and 170. How would I go about this in vb.net to produce all the possible combinations which would total say 92.

View 6 Replies


ADVERTISEMENT

VS 2008 Finding All Numeric Combinations Of A Set Of Numbers?

Jun 7, 2009

I am trying to create a program that can figure out all the different combinations of numbers in a string.

View 2 Replies

Combinations Of Multiset Numbers In 5 Column Textboxes (of Range 1-90)?

Jun 5, 2011

I have 5 columns of 11 textboxes each on my form the textboxes are generated with this code

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'column 1 textboxes

[Code].....

i need a code to generate all the possible combination of the numbers a user types into the textboxes i have two images (Panel3: the textboxes where added during design time) image2: the textboex were added using the code i gave about

generate all the possible combinations of numbers typed into the textboxes (Example see panel3.jpg image),

The user will type in the desired unique numbers into the textboxes without repetition (Please see the image i did not repeat any number, so can the code detect when a number have been typed twice?) Else when running the program i will be carefull not typing two numbers twice, but its adviceable to detect when a number is typed more than once.

Then the amount of unique number the user will type or supply to the desired textboxes does not matter here and as you can see in the image the amount of numbers in each column is not the same ie it may or may not be same amount (but number must be unique. Please try and see if it can be done to prompt user to enter the amount of numbers to supply in each column)

Then After supplying the numbers just like the one in Image, The button Click will generate all the Possible Combinations of the all the numbers typed into the textboxes in the columns.. Then After generating the combinations in the Listbox, the next Button will be able to delete them from the Universal 90c5 just like the former.

View 5 Replies

Get Numbers From A Text Box Then Use Them In A Math Operation?

Mar 13, 2010

How to get numbers from a text box then use them in a math operation.

View 4 Replies

VS 2010 Math Function On Big Numbers

May 9, 2010

I am making a calculator that accepts large number (represented as strings) and performs basic math functions on them. So far I have Add and Multiply figured out.

Here is addition

Private Function Add(ByVal Number1 As String, ByVal Number2 As String) As String
Dim num1, num2, r, total As New Integer
Dim sum As String = ""

[Code].....

I saw something like this in the code bank but the examples there were from VB6(?) and were hugely inefficient (compared his Add and Multiply examples to mine, his having way more code and loops.)

View 6 Replies

Way To Parse A Math Operator Off Of A String Of Numbers?

Dec 7, 2010

Given a string as a form of input (parsed from an input file) which represents a number and a mathematical operator (<, >, <=, >=, !, !=, and a few others), what is a really fastefficient way to chop off that operator, compare it to a list of valid operators, and then set an "operator" variable to a state (i.e., Enum) representing the identified operator, then return just the number (as a string)?I'm open to various ideas and implementations.I've tried several (about 6-7) myself, and find I'm not really satisfied with the speedThe fastest so far is a For Each loop that walks my list of "valid operators", and compares that operator's string representation against the chopped off bit from the numeric string. I determine the amount to chop off by the length of each valid operator in the valid list.

Here's a code example of the fastest implementation. Assume input like <378 and a valid ops list of <, >, !, or >=79 and a valid ops list of <=, >=:
Friend Function FindMatchingOp(ByVal Haystack As String,

[code].....

View 3 Replies

Generate The Maximum Number I Enter/type Within 3 Or More Numbers Using Math.max?

Feb 7, 2011

how can i code a simple program to generate the maximum number i enter/type within 3 or more numbers using math.max. for example, if i enter 25, 60, 45 how can i use math.max to calculate the largest value out of the 3 numbers?

View 4 Replies

VS 2010 Hmwk - Display The Largest And Smallest Using Math.max - Math.min

Mar 5, 2012

well i am having a couple of issues with this particular homework problem and this is my first programming class so there is probably quite a few mistakes well the homework problem is to take three double values entered by a user and display the largest and smallest using math.max and math.min and display the smallest and largest so i thought i could use a listbox and take the values that went to the listbox and assign variables to each so i can try to use each variable in the math.max and min but im not making it to far and i actually might be way off

[Code]...

View 4 Replies

Combinations Of 16 Take By 2 Using LINQ

Oct 28, 2009

I want simply to generate rapidly combinations of 16 take by2 using linq.So I want to display me the combinations only not arrangements:1,2 (not 2,1 because there are combinations)...1,16 2,3 (not 3,2) because they are combinations..2,16..Comb of 16 take by 2 makes 120 so 120 combinations will be displayed on screen.[code]So my question is how to display rapidly on screen the combinations of 16 take by 2 using this Enumerable class of Visual Basic .NET(the 120combinations in fact)

View 9 Replies

Detecting Key Combinations In Vb?

Aug 16, 2011

I am facing problem while in detecting the multiple key combinations ..here is my cod

Private Function keyboardCallBack(ByVal nCode As Integer, ByVal wParam As Integer, ByVal lParam As IntPtr) As IntPtr

[code].....

View 1 Replies

Get Combinations With Repetition?

May 26, 2011

How can I write all possible combinations to the console? For example, if user enters abc, then it will write aaa, aab, aac, abb, abc, acc, bbb, bbc, ccc.

Here's some code:

Dim abc() As String = {"a", "b", "c"} '
Sub Main()
Console.WriteLine("Enter the amount of characters")

[Code]....

View 3 Replies

Permutations Or Combinations ?

Dec 28, 2010

I think what I'm trying to do is considered a permutation but I could be wrong. I've come across several examples of how to permutate a string as follows:

Permutations of {A B C}: {A B C}, {A C B}, {B A C}, {B C A}, {C A B}, {C B A}

What I'm needing are results similar to this (using the same input) with a repeat of each item to create a list of all possible combinations: {A A A}, {A A B}, {A A C}, {A B A}, {A B B}, {A B C}, {A C A}, {A C B}, {A C C}...and so on.

Below is some code that I found that almost gets me there with an exception of the repeated values:

'Generates all possible combinations from a series of words
Public Function PermutateString(ByVal input_string As List(Of String), Optional ByVal Base As String = "") As List(Of String)
Dim i As Long

[CODE]...

View 1 Replies

SendKeys And Certain Key Combinations

May 26, 2010

I'm trying to send Ctrl+A to Notepad but nothing is happening. Code for the button:

[Code]...

View 1 Replies

Binding Key Combinations To Application?

Sep 8, 2009

How can I bind a key combination to my vb.net application? I know it has SOMETHING to do with the registry, but I have no earthly idea what or how to go about doing this. I want the user to be able to hit those keys when the app is open and have it execute my function, but not while the app is closed.

View 3 Replies

Generate All Possible 3 Or 4 Digit Combinations?

May 30, 2009

I am trying to generate all possible 3 or 4 digit combinations from 0 to 9. I will be outputting them to a text file but I just need help with actually generating them.

View 7 Replies

Generating A List From Combinations?

Aug 3, 2009

I am writing an application in which we have a Product Module, Now instead of defining individual products, we want to just state the Size Ranges in Width, height and different size scale available, and then automatically generate a list of products with all the Size combinations. I cant figure how to do this.Ill give an example.This is how we define a product

Product[code].....

If i had a fixed number of Size types i would just run For loops within for loops and inside the inner most for loop write an Add Item statement with Index of evry selected item, however since the Size types are dynamic, i need to write a recursive loop, and i just cant figure how to.

View 7 Replies

Generating Binary Combinations?

Dec 11, 2010

My task is to develop a Control library (VB 2005) in which u enter a variable in textbox (>=1 , <=5). Lets say you enter "3" then u have too see in table all combinations of boolean numbers for 3bits (000, 001, 010 .....etc). If you enter "4" the table have to be different (0000,0001,....etc) with 16 combinations.

View 5 Replies

Register Two Hotkey Combinations?

Aug 16, 2008

how you can register 2 hotkey combinations.(CTRL + END, and Alt + END).I'm using this code as a reference.

[code]....

View 12 Replies

Achieve A List With All Possible Combinations Of Letters?

Sep 9, 2009

I was wondering how to achieve a list with all possible combinations of letters. Now there are some nice examples on the Internet, however, I'd like to have the following:

Let's assume you have 3 letters (A, B, C), and have a limit length of 3, then it should display this list:

A
B
C
AA

[Code].....

Now, this would be fine with recursive calls I think, but I find it really difficult to think how to code that and how the computer will execute the code. It would be easier if all possibilities had a length of 3, but here that isn't the case.

View 30 Replies

Combinations :: Generate All Possible Words On File?

Dec 10, 2011

Example :

If a got word "don" then file will contain
ddd
ddo

[code].....

View 1 Replies

Create Algorithm / Formula To Get Combinations?

Jun 11, 2011

I want to create an algorithm or formula that gives me the following combinations below. I have manually printed out all the combinations for the example containing 4 tables with respective values.

This is not permutation because i need the combinations to always follow the unique format [code]...

View 2 Replies

Generate Combinations Of Elements Of A List<T> In .NET 4.0?

Jul 13, 2009

I would like a function generate all of the k-combinations of elements from a List of n elements. Note that I am looking for combinations, not permutations, and that we need a solution for varying k (i.e., hard-coding the loops is a no-no).

I am looking for a solution that is a) elegant, and b) can be coded in VB10/.Net 4.0.

This means a) solutions requiring LINQ are ok, b) those using the C# "yield" command are not.

The order of the combinations is not important (i.e., lexicographical, Gray-code, what-have-you) and elegance is favored over performance, if the two are in conflict.

(The OCaml and C# solutions here would be perfect, if they could be coded in VB10.)

View 5 Replies

Generate Combinations Of Pixels On A Page?

Mar 25, 2011

how to generate combinations of pixels on a page using 24bit color using MS VB 10.0.

View 1 Replies

Get Different Combinations Depending On Checked CheckBoxes

Jan 15, 2012

Example: That's 8 different combinations:
1, X, 1
1, X, X
1, 2, 1
1, 2, X
X, X, 1
X, X, X
X, X, 1
X, 2, X

Any way to get the different combinations depending on the Checked checkboxes into an ArrayList. One entry per possible combination (like the example above). Note this example is just for 3 games, I will have 13 games in my program so if you click all checkboxes thats 1,6M combinations. Is it really wise to have 1,6M entries in an Array? I also want to be able to set demands, like: delete all lines in the Array containing two X. Maybe an ArrayList isn't the way to go?

View 9 Replies

Get Only Unique Month And Year Combinations?

Oct 11, 2011

Using VBNET, MVC 3 and Entity Framework to write my first mvc application - a single user blog application. I am trying to create an archive sidebar that will render something like October 2011 and when the user clicks they will see all posts in october. Right now all my attempts show either duplicate dates - if there are 3 posts in october then i see october 2011 3 times or i only get back one month year combo say oct 2011. Using groupby with firstordefault i only get back one month yaear combo.

posts = _rdsqlconn.Posts.Where(Function(p) p.PostIsPublished = True).GroupBy(Function(d) d.PostDatePublished).FirstOrDefault

How can i get back unique month year combos with EF?

Additional info: I have that function in my repository. I want to pull the month and year pairs so that i have only one pair for say ocotober even if there are 3 posts in october.In the repository:

Public Function SelectPostsByDate() As IEnumerable(Of Entities.Post) Implements Interfaces.IPostRepository.SelectPostsByDate
Using _rdsqlconn As New RDSQLConn
Dim posts[code].....

View 2 Replies

Make All Possible Sum Combinations From Array Elements In VB

Mar 24, 2010

If there is an array with elements: 1,2,3,4, the program should return another array with sum of all combinations:

1
2
3

[Code]....

View 3 Replies

Use Multiple Combinations Of Font Styles?

Feb 2, 2010

If I want to set my Font I can use new Font=("Times New Roman", 12, Drawing.FontStyle.Bold)Instead of Bold, I can use Italic, Regular or Underline

View 1 Replies

VS 2008 Word String Combinations?

Apr 12, 2010

I am trying to generate a combination of string words and this is not permutations. For example if I had a list of words like (bat, cat, dog, egg...)then try and generate n(n-1)/2 combinations like

bat cat dog egg
batcat catdog dogegg
batcatdog catdogegg

[code].....

View 13 Replies

.net - Generate All Unique Combinations Of Elements Of A IEnumerable(Of T)?

May 12, 2011

This question is virtually the same as this SO post, only I'm looking for a VB.NET (.NET 4) solution. I've spun my wheels long enough trying to come up with a generic solution to solving this "power set" problem.

Dim choices As IEnumerable(Of String) = {"Coffee", "Tea", "Milk", "Cookies"}
Dim choiceSets = choices.CombineAll()

I'm looking for choiceSets to be an IEnumerable(Of IEnumerable(Of T)) so that I can do something like:

For each choiceSet in choiceSets
Console.WriteLine(String.Join(", ", choiceSet))
Next

[code]...

As you can see, this is every non-repeating combination from the source IEnumerable(Of T) (which could have 1 to many items in it - this example only had 4), it operates based on the order of the items in the source IEnumerable(Of T), and each item in the list is >= the previous item in terms of number of items in the inner IEnumerable(Of T).

For what it's worth, this is not homework; though it sure does feel like it. EDIT: Updated the example so it does not look like the result is alphabetically sorted, to stress that the source IEnumerable(Of T)'s existing order is used and added a 4th choice to clarify the sorting requirement within each set.

View 5 Replies

How To Generate All Real Combinations From String Array

Apr 2, 2012

I need to generate all combinations (not permutations) in VB .NET, I've been search and all I found is for permutations (some says combinations but when I was try it, all are permutations).

What I need is to generate combinations from string array:
Dim data_array As String() = {"one", "two", "three", "four", "five", "six"}

I need that: If I say just 1 length, it must returns:
one
two
three
four
five
six

If I say 2 length, it must returns:
oneone
onetwo
onethree
onefour
... etc ...
twoone
twotwo
twothree
... etc ...

And continues til end with all combinations. If I say more length do it as well.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved