For example, how would I get the # "220" from the number "229". Or the number "300" from "309"? The only way I've found to do this is using string stuff, but I'm afraid of the overhead for strings?
View 15 RepliesI was wondering what the fastest way is to check for divisibility in VB.NET.I tried the following two functions, but I feel as if there are more efficient techniques.
Function isDivisible(x As Integer, d As Integer) As Boolean
Return Math.floor(x / d) = x / d
End Function
Another one I came up with:
Function isDivisible(x As Integer, d As Integer) As Boolean
Dim v = x / d
Dim w As Integer = v
Return v = w
End Function
I was wondering what the fastest way is to check for divisibility in VB.NET.I tried the following two functions, but I feel as if there are more efficient techniques.Function isDivisible(x As Integer, d As Integer) As Boolean Return Math.floor(x / d) = x / d End Function
Another one I came up with:
[code]...
Is this a more practical way?
i just started to learn mod and i was having trouble with this. heres my code:
[Code]...
I'm converting some php code that tries to get a string to a length that is divisible by a certain number, say 10. To do so it appends "�" to the string to make up for the difference. In other words, it does something like:
dim difference as integer = 10 - (str.Length Mod 10)
for i as integer = 1 to difference
str += "�"
next
But the problem for me is that "�", which is the ascii code for the null character, is two strings and I don't believe that when VB loops over resultant string it will view that as one character. what could I append the string with to retain the expected behavior?
how can i always round a double up?
2.3 = 3
2.5 = 3
2.8 = 3
i always want to round up to the nearest whole number
Decimal number in my textbox I need to round to the nearest even number. Is there any idea how to do it?
View 21 RepliesI'm creating a maths program and when it comes to division it's giving me .34216 as answeres which isn't what I want.I was thinking declaring the textbox the answer appears in as a single.It's not working out though and it's still using decimal points.I was told by my teacher to declare it as an integer so I tried that too, it's not working out also. I figured based on the code, I would be declaring array3() as the single or integer since that's the textbox the answer will be output into. [code]
View 2 RepliesThe window is 600x600, because the game uses a 'grid' of thirty. Each food block is 30x30, and so is each block that makes up the snake. Here is my food making sub:
View 4 RepliesI have a program that will round any numbers I give it regardless of the data type I set (I've tried double and decimal) before it saves into the DB. I'm using MS access for the DB and I've set the data types in access to Numeric Double, Numeric Decimal, and Currency and all with decimal places set to 4 -- all to no avail.
What I do know:
1) The textboxes on the form accept the number value as I enter it and after I hit save the value displayed is the same as the number that I entered. However, once I query the database again for that entry the value has been rounded up/down to the nearest integer (whole number). For example: I enter 1000.50 and hit save. I search for that same entry and the value is saved as 1000. If I enter 1000.51 and hit save then search for the entry it shows the value saved as 1001.
2) I can store the desired value directly into the DB by manually entering it. When I search for that entry from within the program it displays the correct amount. HOWEVER, if I try to change the amount and then hit save I get a concurrency violation.
I think that it may be a setting somewhere in the program that doesn't allow for decimal places but I've search everywhere and I cant find anything.
I am working in excel trying to setup a function involving multiplying a cell by a set number and then having the result round to the nearest 10. Here's the beginning of my function statement fx=e3*1.026. say the result is 8654, I need it to round to 8650. Also if it comes back 8655, I need it to round to 8660. I have about 2,000 records I need to do this to so I was hoping that one formula or statement could be used for all my data.
View 2 RepliesI'm trying to check if when x is divisible by 5 then it makes y true.
basically: if x / 5 = "positive integer" then y = true.....
how do you check if a number is divisible by 5?
i need to count and add all numbers that are divisible by 2,3 and 5 inclusively ( the answer is 30, 60, 90 sum is 180). I tried running a loop and a true false isnumber. what am i doing wrong? all i have is two textboxes and a button Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
I have run into a snag in my loop program. I was able to figure out the maxium sum and average of the sum. But am not able to figure out how to:
1) List the minimum value
2) List the sum of the numers divisible by 5.
These are the numbers.text displayed:
5
15
6
[Code].....
In my order program, I need to determine if the quantity ordered is full boxes.For example - all of our parts/products have different box quantities, and when a customer orders a certain quantity, I want it to do nothing when I type in the quantity IF the order quantity is even boxes, If it is not even boxes, I want a pop up form with three radio buttons to come up. The three radio buttons will have the next higher even box quantity, the next lower box quantity, and to keep the current quantity and apply a broken box charge. I have this pop-up form done except for determining if the order quantity is an even number of boxes, and then determining the next higher and next lower.
Just to clarify - let's say a customer orders a part that has 60 pieces per box. If he orders 180 pieces, nothing happens and you can continue to put the order on. If he orders 200 pieces, a pop-up form with 3 selections - "keep current quantity and apply broken box charge", or "Change Quantity to 240", or "Change Quantity to 180" comes up.
I need code that would take the input from textbox "Txtkbb" and divide it in half then round to the nearest 25 and store it in value "KbbValue"
View 4 RepliesI have written a program to return the colour of a pixel from an image. The problem I have is I need to return the colour name. Of course not all colours returned will be one of the pre-defined colours (knowncolours), so my question is, is there a way to find the nearest knowncolour which matches the colour of the pixel?
I have looked at GetNearestColour but am confused by its function. It just seems to return the same colour as the parameter passed into it.
getting a formula round off to the next highest .25.example:
2.35->2.50
2.26->2.50
2.24->2.25
2.51->2.75
I can't use the Round function because if I have 2.26 then it will round off to 2.25 which is unacceptable.I have been using the Ceiling function but it rounds it off to the nearest highest integer. Which can add an almost extra kg,lb to my formulas.
How do I go about rounding up to the nearest (Unit 10) ie Codes Below
IfVal(TimeHalfFareTextBox.Text = $/£ 0.05)
Then roundup
to $/£ 0.10. Or it might be .....
[Code]....
I use Mschart to produce charts. What I am trying to get is the nearest data point by where I click on the chart. The problem is that I can't find any connection between the HitTest values and the data point x/y values.Say, I clicked on the following point:
Dim result As HitTestResult = Chart.HitTest(e.X, e.Y)I have now values of X and Y where I clicked. How to associate it with the data point values?
What I want to achieve is to double-click on the chart which would find the nearest data point (x,y as integer) and knowing these values I would be able to recalculate other values based upon where the user needs it and double-clicks.
[Code]...
i got a function that search for database data, is it possible that i make it search the nearest words or keywords? which mean if d name is TEST, n i key in TE then it will show those name wit TEST TESS TSST? [Code]
View 2 Replies[code]How can I validate that if 387 mod 2 <> 0 then it should display the nearest double. In this example, it should display 386 which is nearest to 387 and can be fully divide by 2.
View 3 Repliesi'm building an image library and one of the things i want to do is compare the most common color in a given image to a set of established colors in rgb format the way i'll probably do this is create 3 arrays for the average r,g and b of each given image, and then compare them to my established values for r,g and b that i want to match to so if my first image has the average values of 255, 125 and 5 for r,g and b..what would be the best way to do a nearest match against my pre-established colors? (about 32 in total)
View 1 RepliesI'm trying to round a double to the nearest 5th or 10th number. So far my code looks like this basically:
'Mathamatical equation For Cost to Mow
dbCost = (txtArea.Text / dubMetres) + intExclusions * 3 + (intIrregular / 2)
Dim dbRounded As Double
'Trying to round to nearest 5 or 10
[code]....
I have read about Round() and MidpointRounding.ToEven but I still could not figure how to use it to achieve what I want. I have numbers (usually from 5 digit decimal) such 125.36 , 125.10, 125.99. I want to make the 2 decimal point rounded to the nearest 20. Means, the 2 decimal point should be either .00 or .20 or 0.40 or .60 or 0.80 only.
125.36 should be 125.40 : 125.10 should be 125.00, 125.99 should be 126.00
125.54 should be 125.60 and so on
Is there math function to make or I should parse the number as text and test the last 2 digit?
Is there any prebuilt items to roundup a number to set fraction size or do I need to build a routine to do this? If I have to build this any thoughts on the way to go about it? I was thinking I need to strip the decimal places and then compare them to a dataset of numbers a make a choice?
View 3 RepliesI'm doing an assignment for class which is basically a simple program that takes 12 monthly temperatures and averages them. But I also need to round the average to the nearest tenth. I am not particularly good at programming or math and don't know how I would fit this into my code. I am Including My program thus far. I put in bold and italic where the calculation takes place.
Private Sub btnEmterTemperature_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmterTemperature.Click
'FOR BUTTON CLICK EVENT "ENTER TEMPERATURE"
[Code].....
How can I make it so that decimal numbers round up or down to the nearest integer?
View 3 RepliesHow can i filter a DataView to a string nearest match? Almost like a FullTextSearch, is this posible using a DataView?
View 1 RepliesI'm trying to find a way to force my calculations to round up currency values to the nearest whole pence/cent.By default, rounding will round to the nearest pence/cent, whether this is up or down.I need it to always round up regardless.[code]My client's back office system rounds in this manner which is rather peculiar to say the least, however the prices on his website need to match and to to this they need to be rounded up.The built in ASP.NET Math.Round function only offers the regular rounding(and banker's rounding) and not an option to force rounding up or down.
View 3 Replies