Round A Double To A Certain Number Of Decimal Places
Jan 8, 2009is it possible to round a double to a certain number of decimal places
View 1 Repliesis it possible to round a double to a certain number of decimal places
View 1 RepliesHow to i roundup a double number to 6 decimal places in vb.net?
View 1 RepliesI'm using ROUND() to calculate the value in one column from values in the others and it displays to a lot of decimal place.Its rounded correctly to 1 decimal place but when shown the the datagridview it displays like 12.3000000000..All 3 values used to calculate this one are stored to two decimal place, not that that should matter.[code]
View 3 RepliesAlso how would I format totalCost (a string) to round to two decimal places?
lblTotalCost.Text = "The cost of your journey for " + sumNoTickets + " people, is: + totalCost
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
With the following problem which I want to round up the "TotalVolume" and "AvgHL" with 2 decimal places. However, my ListView2 is still showing as the following example.
Example:
ID --------- Average H/L ----------- Average Volume
12 --------- 1.230000 ----------- 4251.230000
17 --------- 0.560000 --------- 12345.560000
23 --------- 0.320000 --------- 2345.010000
54 --------- 1.230000 --------- 122.550000
Dim conn As SqlConnection
conn = New SqlConnection(Source)
conn.Open()
[CODE]...
I have a double value like 3768.595863. if i round this value then i will get 3768.596 but i want 3768.595.how can i get that?please reply.
View 7 Replieshow to get 1.83333333333... to 1.83?
Dim temp_1 As String
temp_1 = 5.50 / 3
Label1.Text = String.Format(temp_1, "{0.00}")
Problem: Using the sub routing below, when adding a value to another value the results eventually change from 2-decimal places to multiple decimal places.Basically, the amount stored should always only be 2 decimal places, because the values passed in are always 2 decimal places. Output from calling the sub routine multiple times.
Running total = 329430.75
New Withheld Amount = 710.79
Running total = 330141.54
[code]....
As a workaround, I have a new routine that uses a custom round function to properly store only 2 decimal places - as the VB round function does not perform the type of rounding desired.I understand that we are removing the value from the dictionary and adding it back..
How do I check how many decimal places does a number have in VB.net?
For example: Inside a cicle I have an if statement and on that statement I want to check if a number has 4 decimal places (8.9659)
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 have a field in datatable .If 1000 is the value in it, i want to display it as 1000.00.Then if user changes to 1000.50 it should display as it is.Is there anyway to do this?
View 4 Repliescorrect syntax to format decimals. I want 2 decimal places even if the result is an even number i.e. I want 40 to show as 40.00 and 40.6666667 to show as 40.67.
View 8 Repliesive done a bmi calculator bbut the end result has 4 or 5 decimal places when i only need one. how do i limit the number of decimal places
View 3 RepliesHow do I enable a user to set the number of decimal places in my code?essentially I have multiple variables in my code ,different kinds of pressure for example and with each instance I declare the following;
txt_Alt_Press.Text = Strat_Press.ToString(Press_DP)
I then set Press_DP in a module, declared as a public variable,
Public Press_DP As String = ("F1")
So what I want to do is make the "F1" bit a variable in itself, so then the user can set the number of decimal places with a numeric up-down control.
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 i can format a number to only show decimal places if needed?For instance...
string.format("{0:SomeFormat}", 26.9) = "26.9"
and...
string.format("{0:SomeFormat}", 26.0) = "26" 'Drop decimal for whole numbers
I have got a decimal variable however i only want it to be to two decimal places. How can i set this?
View 4 RepliesI need to write a program that uses constants to establish the base pay, the quota, and the commission rate. The Pay menu item calculates and displays the commission and the total pay for that person. However, if there is no commission, do not display the commission amount (do not display a zero-commission amount).Write a function procedure to calculate the commission. The function must compare sales to the quota. when the sales are equal to or greater than the quota, calculate the commission by multiplying sales by the commission rate. Format the dollar amounts to two decimal places; do not display a dollar sign.The summary menu item displays a message box that holds total sales,total commission,and total pay for all salesperson. Display the number with two decimal places and dollar signs. the Clear menu item clears the name, sales, and pay for the current employee and then resets the focus.The Color and Font menu items should change the color and font of the information displayed in the total pay text box.Use a message box to display the program name and your name as programmer for the about option on the Help menu.
[code]...
So the issue is when I push the pay/calculate button everything is calculating correctly the first time, but then when I push clear to input another workers name and weekly sales and push calculate, my label is blank and does not display any info about the second worker. Then when I push summary after inputting the second worker, it's only displaying the total calculations of the first worker. I can't seem to figure out this problem on my own (After countless hours staring at my code I might add!), so I am hoping somebody can pinpoint what I have done wrong? EVerything else is seeming to work just fine.[code]...
Any way (outside of writing rounding routines) to restrict the number of places after the decimal in a Decimal data-type variable?
View 3 RepliesHow 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
View 5 RepliesIs there a way in VB .NET to have a decimal variable with 40 decimal places?
View 3 Repliesformat number to hower many number on left of decimal and 1 decimal without rounding
View 2 Replieshow to round up a decimal numbers.. 5.63 = 6.00, 5.43 = 5.00
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If I have a Double myDbl have the value 0.764364647348378573857485734, but I wanted a string to just show the first three decimals of the value(0.764), how do I do it?
View 2 RepliesFor greater accuracy I should use a Decimal instead of a Double ( so I've been told ). Why then have Microsoft chosen to use DOUBLE for most of the functions that return a floating point value in the Math Class?
[Code]....
I am trying to write a code for a curency convertor.The result from multiplying the amount by the exchange has to be to 2 decimal places in order to convert it into Pounds and Pence.
Dim Currency As String
Dim Exchange As Decimal
Dim Amount As Integer
Dim Result As Decimal
Currency = txtCurrency.Text
Exchange = txtExchange.Text
Amount = txtAmount.Text
Result = Amount * Exchange
lblOutputMessage.Text = Result
Mod Edit: When you are posting code please use code tags like this.
Using Visual Studio I'm using TextRange processing a word at a time, parsing for figures and minus values etc. All of which works. However I have to honour the original number of decimal places in the figures, even though they may be 0's.ie -1219.0 and 1219.00 are both valid inputs the valid outputs would be(1,219.0) and 1,219.00, I can't just use tostring and stamp all of them as "N2" etc).I have to format including retaining the trailing 0 if necessary.I can use "#,##0.######" but that removes trailing 0's... ie both above example would be changed to 1,219 pos or neg.
View 2 RepliesI'm trying to get my decimals to display with four decimal places. The DB rounds my number to 4 decimal places, but it returns the number with trailing 0s (due to the decimal precision of the field), so something like 9.45670000.[code]...
How do I format my decimal, so that the number of decimal places is always four?
How can I convert the Tax in the following code which is Double to a two decimal place figure[code]...
View 8 Replies