Algorithm - Round An Integer Number?
Jun 10, 2012How could i round an integer number based on the last digit of the number?
For example:
Dim x As Integer = 12
Dim y As Integer = 139
Dim z As Integer = 2322
[Code].......
How could i round an integer number based on the last digit of the number?
For example:
Dim x As Integer = 12
Dim y As Integer = 139
Dim z As Integer = 2322
[Code].......
In class the teacher mentioned that textboxes return string. If I am asking you to tell me how many hours did you work, and if you say 2.5 I would like to have the integer 3 stored, because I have to pay you for any fraction of an hour as a whole hour.
I remember seeing someplace that it would be changed into a double and then take the ceiling of that double and then change it into an integer.
Something like intHouresWorked = cint(celing(cdouble(textbox.text)))
will that work, or am I missing something?
How can I make it so that decimal numbers round up or down to the nearest integer?
View 3 RepliesI have a function which generates a very large Integer (I do this by using Biginteger from vjslib.dll and I am able to operate all kind of arithmetic operators on such a biginteger.) But, My goal is to shorten this big integer into a small integer. Is there any algorithm? or a mathematical Formula which I can use to represent it in a small integer and use some reverse formula to get the original Big integer?
The big integer my function creates goes like this:
98761210112313489375987956157462364864823458794572 34573485683465868234568613123749081377932457923457 93475897836587236458678234568234658362458762347895 68932456892346578636123846715376123475745723645666 38247687346128346812364812364816341384612384678345 76341236412783461278346781236481263489126348971238 41134681273467812364789
I do not want to represent my bigInteger in a higher base as it will not be possible to do conversion into higher bases with such a large integer.
I want round up given numbers in c#
Ex:
round(25)=50
round(250) = 500
round(725) = 1000
round(1200) = 1500
round(7125) = 7500
round(8550) = 9000
I can't round up the decimal number using VB.net
i'm using Cint(12.5) this must be 13 but it is not so i try Round(12.5) but still not roundup what do i do?
I have a vb application that need to round a number down e.g. 2.556 would become 2.55 and not 2.26
I can do this using a function to strip off the characters more that 2 right from the decimal point using this[code]\...
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
I need to round like this:
12 -> 10
152 -> 200
1538 -> 2000
25000 -> 30000
etc.
Twisting my head, but can't see how to make this. Must work for any n number of digits. Anyone got an elegant method for it?
I am trying to round a number but I keep getting an Infinity number. How do I round this.
4000 / 7135 * 100 Here's the code I've tried.
Round(readVals(0) / Scaling1 * 100 + ActualValueLow1, 2)
FormatNumber(readVals(0) / Scaling1 * 100 + ActualValueLow1, 2)
Decimal number in my textbox I need to round to the nearest even number. Is there any idea how to do it?
View 21 Repliesis it possible to round a double to a certain number of decimal places
View 1 RepliesIn vb.net i am going to round a number but it is not Giving me correct answer. i.e.
Round (1.5,0) = 2
Round (2.5,0) = 2 which is wrong. the answer should be 3.
(When i use the Round formula in Excel it gives me the correct answer)
I'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 RepliesI am writing a program that has 2 text boxes & 1 button in it.The first text box is to enter a number then hit the calculate button and it outputs to the 2nd text box after doing a math problem.I then need it to round to 2 decimal spots.I used to use Visual Basic 6 but don't have access to that any longer.So now I'm using Visual Basic 2008.Here is my code, but the math.round isn't working.[code].....
View 1 RepliesThe line in code is giving me problems it is preventing me from searching the first part of the array but if I move it to the end or to any other spot the search wont work.
Public Sub AccountNumberSearch(ByVal a() As Account, ByVal accnum As Integer, ByVal numacc As Integer)
Dim x As Integer = 0
Do Until a(x).AccountNumber = accnum
x += 1
[Code] .....
I need a function which will Round a number UP to the specified decimal precision, exactly the same as how Excel's RoundUp function works:
Roundup(dblVal, intDecPlaces)
So I need the following:
Roundup(0.896523, 4)
would return
0.8966
However, everything i've tried/found simply rounds to the nearest whole integer, or returns a normal rounded value, hence the above would return
0.8965
I've tried the following:
Math.Round(dblval, intPrecision, midpointrounding.awayfromzero)
' and
Math.Round(dblval, intPrecision, midpointrounding.toeven)
And even custom functions, such as:
Public Function RoundUp(ByVal varValue As Object, _
ByVal iNum As Integer) As Double
'ignore the data types here, I was playing to see 'if changing any of the data types would swing 'the results (knowing full well they wouldnt make 'a difference, thats how fed up with this I am!)
Dim lNum As Long, xVal As Double, xVar As Object
xVar = Fix(varValue)
[CODE]...
I've even looked at converting this to a string, looking at the Xth decimal place, and incrementing it up by 1, then converting it back to a double, while this works (sort of) it seems to be a very roughshod way of doing it, and I'd rather do it mathematically than with lots of data conversion.
How can I join more than one integer number to become one integer (Long) number?
e.g. 2, 3, 2 and 5 = 2325
123, 7 and 2 = 12372
10, 0, 5 and 1860 = 10051860
0, 10 and 450 = 10450
I am trying to take a database with multiple entries of 11 digit numbers and run a check sum algorithm that adds the 12th digit to the 11 digits as an output.The algorithm is as follows:
Add sum of odd digits starting with first digit, then multiply by 3.
Add sum of even digits, then add to result of odd digits multiplied by 3.
Take result and divide by 10. The remainder is the check sum which needs to be added to the end of the original 11 digits.
I would like to round a number that is a whole number, but i would like to round it to the nearest value of N So if N was 5 then it would round the number to the nearest factor of 5 if N was 6 then it would round the number to the nearest factor of 6 and so on....
View 4 Repliesi am trying to round up every number to the next whole number even if the number is of lower decimal....
for example:
round 1.1 up to 2
round 1.4 up to 2
round 1.7 up to 2
[Code].....
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 am trying to implement an Algorithm called "Diamond-Square Algorithm" I am having trouble ending it so that it retiurns the required result. So far I have the folloiwng.
[Code]...
I've just begun using VB2008 Express. As practice, I'm trying to create a simple program that allows users to practice their basic arithmetic skills. I've just run into one hiccup.
I have a procedure that generates random numbers for the program to spit out as text that the user will then do arithmetic on. I'm trying to create a loop that checks, in the case that a radio button selecting division practice, that the potential quotient [code]...
What i'm trying to do is compute whether an integer number is prime or not. The program performs this analysis for all odd numbers from 3 up to an input integer limit, for example 100. If the integer in the range 3 to limit is prime, a message stating so is printed. Otherwise, a message is printed that lists at least one other integer divisor. The output for each analyzed number consumes one line of text.
A sample output is shown below:
Limit is 100:
Number 3: is prime
Number 5: is prime
Number 7: is prime
[CODE]...
I understand I need to use loops, boolean functions, vbmath(), strings and multi-line out via concatenation. So I can put this is words how I think it should be done but not so great putting the code together
Test all integers up to the SQRT of the number (100)
limit = math.sqrt(100) + 1
Followed by 1 For statement
For c = 0 to 100 step 2?
And an If statement
If ......
result = false
I'm trying to create a code to open a new workbook..once it's open I want to save it in numbered order. I have everything else in the code complete except how to finish the integer. I know this should be easy but I'm having a total mind block. [code]
View 1 Repliesi'm dave mark.. im new to vb 2008.. i just have to have some question.. the problem is i have to input 10 integer number then after inputting the 10 number .. it will compute the sum, average and the smallest.. i have no problem with sum and average but in smallest number only... how to get the smallest number>>?
View 1 RepliesI have a string
12 | Something Special
I would like to cut the "12" and convert into integer (I need it for SQL query purpose)
I tried:
Dim strID As String
strID = "12 | Something Special"
Dim IntStrID As String[code]....
but I tried "" still did not work
i want to get a random number from an integer array, then delete that number in that array.for example, i have an array like this {1,2,3,4,5,6,7,8,9}now i want to get a RANDOM number in that array ( the number must be in the array), 8 for example. And then delete it from the array.
View 10 RepliesI know there has to be a simple way to do this but I'm not sure how the syntax would go. I need to generate a random number from 1 to 99. How do I do this? I have my attempt that failed below:
Private Sub LoadBoard()
Dim mynum As Integer = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99)
Storage.Slot1 = mynum(Int(Rnd() * 10 Mod 99))
End Sub