how to get the product using "+"(addition) and division using "-"(subtraction) and get it's remainder without using modulo division.
dim ctr as integer
for ctr=a to b
ctr=a+a
next ctr
i am currently making a maths game but i have run in to trouble trying to do the addition and subtraction side of the game. This is my current class file for my multiplication
Public Class Class2
Private Property question_gameplay_label As String
Private Property correctAnswer As Integer
[code]....
I got a problem with my calculation .The problem is after addition and subtraction calculation I only get result or answer 0, .There are not a correct answer. I try to change the datatype of the variable to decimal and double but answer is still 0.
Here is my coding.
Private Sub btnadditionprice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadditionprice.Click
Dim sum6, sum9 As Decimal
sum6 = Val(Me.ItemPriceTextBox.Text) + Val(Me.txtadditionprice.Text)
[Code] .....
Answer which got is 0.000
I have made my calculator and it has 2 textboxes where the 2 numbers (or values go for addition and subtraction) are input and a label where the answer appears. There is other things on the page such as quit, clear etc thats all done but i have one query. I noticed while testing a problem occurs when only one number or value is put into a textbox and a command is hit. For example. one textbox (txtnumber1) has one number in it then i hit multiply and it says the error of course because its not programmed to deal with this (or divide by 0 of course) so i was wondering how i could make so when this happens a MsgBox appears saying a value must be in both boxes or when divded by zero is says something similar.
The line of code:
Private Sub blah blah blah...
If txtnumber1.Text = False Then MsgBox("Please Input Valid Value")
End Sub
I however have not been able to make it work.
I need to create a tiny calculator using the basic operators of Addition, Subtraction, Multiplication, and Division. My professor hasn't really covered much of this, so I'm not to sure how to create it.
View 6 RepliesI'm writing a program for my algebra students to practice integers.Stuff like....
3-6
-4 + (-5)
3(-4)
-15 � 3
etc.
I want to show an explanation and for the addition and subtraction, I want to show it on a number line. For example, if the problem is 3 - 7, the number line should show and arrow to that goes right to 3, and then left 7 units (starting from 3). Then the student can see that the answer is -4.I could probably do this with some string manipulation, but what would be the easiest way to do it in a picture format? Maybe a bitmap.
I have (label1.text), a combobox(items = + , -), (label2.text) = answer1.text
What I want to do is randomize if its an addition exercise or a subtraction exercise.
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
View 6 RepliesI have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
ProductMstrTbl : ProductID, ProductName..
ProductDetailsTbl: ProductID, PurchaseDate, Amt, BalanceQty..
DataSet(ds) : ProductID, ProductName, PurchaseDate, Amt, BalanceQty.
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
View 2 Repliesi need help how to add odd numbers that are in my 6 textboxes collection and to see the result to label1 and how to add the textboxes that have numbers less than number 5.
View 4 RepliesIn my "Select" statement I have this:
Int((Date()-dob)/365.25) AS Age
I would like to do the same thing in VB .NET code. I plan to do something like:
editBoxAge.Text = .......
dob would be stored in datePickerDob.Text
Remember this from before?
Quote:
Since you are repeating same operation three times it is best to make a function for it.
CODE:
labels 1-6 are randomly generated numbers, text boxes 1-3 are the input boxes and the code above shows how if the answer in the textbox equals the labels added together, you win. This code works -
I have created labels 7-12 now, and textboxes 4-6. How can I extend this program so it has subtraction as well?
If this problem definition isn't detailed enough, let me know and I'll add more detail to this description.
if i have 2 textboxes and i want to do subtraction with textbox1 and textbox2.
The value inside textbox1 is "5 12 30 8 2"
The value inside textbox2 is "7 9 14 8 3"
May i know what can i do so that the result will be "-2 3 16 0 -1"???
i'm working on a simple 3D CAD to create complex 3D objects. This application uses:
1. Direct3D to render the objects
2.The methods contained in the Mesh class (such as Mesh.Box(...)) to create them
3.The Matrix class to apply some basic transformations (such as Translation or Rotation)
My issue is to do a boolean subtraction of a Mesh to another one to create a more complex Mesh, for example a Mesh with holes.
can I subtract a value from the value in the previous cell or cell above.I have created a stopwatch, and previous to using a datagridview, ive been using labels with this
If LapTimeLabel1.Text = "0:0.000" Then
LapTimeLabel1.Text = StopwatchLabel.Text
lapTime = DateTime.Now()
[code].....
i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and please correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.If my command if false please show me with correct command..
[Code]...
I am writing a program that sims a cash register. Everything works fine except VB will not compute subtraction. If I put a replace - with + everything works. What could be the cause of this?
Here is part of the
'Convert input into number
isConverted = Double.TryParse(owedTextBox.Text, NumberStyles.Currency, NumberFormatInfo.CurrentInfo, owed)
[CODE]...
***********If owed is 10 and paid is 5, it returns 0, but if I change the - to either a + or *, it returns the expected value
i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ra As Integer
[Code]......
What's the difference between / and for division in vb.net? My code gives very different answers depending on which I use. I've seen both before, but never knew the difference.
View 3 RepliesI am using oledbconnection object with access database engine 64 bit to get data from Excel file. While using sqlconnection object if sql string has these statements "SET ARITHABORT OFF;SET ANSI_WARNINGS OFF;" , then division by zero exception doesn't cause any problem. But while using oledbconnection these statements cause error. My code samples are below:
Dim PbpConn As OleDbConnection = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=C:BuzBeatDataPBPData.xls" & ";" & _
[Code]....
When SUM(pbA) has value "0" then it causes error and can't get data. is there a way to close the warnings and division by zero exceptions?
i face a problem while i practice the question in my text book, it require us to key in 4 digit of number and split it into 4 digit and encrypt it. Below is my coding [code] Console.WriteLine("The encrypted number is: " & encrypNumber3 & encrypNumber2 & encrypNumber1 & encrypNumber4)But its got error after i key in the 4 number.
View 2 RepliesI've got a problem approximating the result of a division that should give a sharp result:
I use this code:
pListPrice *= 100 / (100 + VATPercentage)
where VATPercentage = 20D is declared as Decimal type. pListPrice = 25.2D is declared Decimal too.
The result should be: 21.00 sharp!
Instead I get 20.99999999999999999999D
I have a group of 25 labels named Label1, Label2, Label3, ... Label25 in a square of 5 per row, 5 per column and I wanted to assign the backcolor to all of them on a loop and assign a value of "True" or "False" to a matrix of 25 boolean values representing them.
But I was getting errors on the pattern created.
My approach was to use a substring containing a number copied from the label names:
Num = Val(sender.name.substring(5))
And the subindexes of the matrix:
p = (Num - 1) / 5
q = (Num - 1) Mod 5
The values for the lower corner of the matrix were rouded to 5 instead of being 4. Instead of (4,0) ,(4,1), (4,2), (4,3) (4,4) I was getting (5,0),(5,1)...(5,5)
So I solved the problem by creating two single variables "A" and "B", doing the divission and MOD operations on them, finding the floor of them and then converting to integer:
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
Label1.Click, Label2.Click, Label3.Click, Label4.Click, Label5.Click, _
[Code]......
Deviding an int by zero, will throw an exception, but a float won't - at least in Java. Why a float have an additional NaN info, while int haven't?
View 6 Repliesi have got a value in time span lets say: tsp1= 2 hour 5 minuts i have a another time span variable which contains value like: tsp2= 0 hours , 2 minuts?how can i divide tsp1 by tsp2 so than i can get exact number of times tsp2 divied the tsp1 and how much value is remaining.i am using vs2008?
View 3 RepliesIn the following linq query I have a division by zero exception wich I can't seem to code around. It occurs when the Sum of fldDevider returns 0.[code]...
How can I Make sure the ValuePerMonth field is 0 when the Group.Sum(Function(dr) CDec(dr.Field(Of String)(fldDevider))) function returns a 0. Or how do I return a 1 for Sum fldDevider if it is actually 0.
I have hit a block and not sure the best way to go with this. Looking for resources to find more on the subject
View 1 RepliesThis exercise says :"Write a program that inputs one number consisting of five digits from the user, separates the number into its individual digits and prints the digits separated from one another by three spaces each. For example, if the user types the number 42339, the program should print
4 2 3 3 9 Use the command window for input and output. [Hint: This exercise is possible with the techniques discussed in this chapter. You will need to use both division and modulous operations go "pick off" each digit.]"
Here is what I have learned in Chapter 3:
�If/Then Statements
�Console.Write()
�Console.WriteLine()
[Code]....
This exercise I have yet to start, and don't think I will be able to do much, because I have no clue how to "Pick off" the numbers using division and modulous operators. I know what the mod operator does, but I do not know how to use it and division to do what this exercise is asking me to do.
How do you check if the division of two integers is a whole number, just answer with code, no links?
View 6 Replies