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Muitiplication Table In C++

 
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Muitiplication Table In C++, Write a Program to generates the multiplication table.The program is t
hamilton718
11 Oct, 2007 - 05:46 AM
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Very Confused with this program please help thanks
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Smarf
RE: Muitiplication Table In C++
11 Oct, 2007 - 05:49 AM
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A few things to help you out:

- Post your code, like the big grey letters say every time you create a post. People here won't do your homework for you, you need to make an effort.

- Be more specific about your problem. What exactly are you having trouble with? What is your output? What is your output supposed to look like?
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adeoluwafemi
RE: Muitiplication Table In C++
11 Oct, 2007 - 01:25 PM
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ok i have a problem. My professor doesnt teach well and the book we using is very extremely confusing. she told us to do a multiplication table that asks user for the amount of number the table should display.


suppose to look like this when he outputs


Enter amount of number for table: 3


1 2 3
2 4 6
3 6 9


Im not asking for someone to do the work for me cos i wont learn that way but can someone please show me how to make it output like this. I know how to do the for loop and the other loop. But its been giving me headache how to make it display like that and how to make it to be any number the user inputs. Please help
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jjhaag
RE: Muitiplication Table In C++
11 Oct, 2007 - 01:30 PM
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please post the code you have, and we can try to point you in the right direction. the resolution to your problem is quite possibly going to depend on the rest of your code, so it's hard to give you any kind of an answer without seeing what you've done.

-jjh
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adeoluwafemi
RE: Muitiplication Table In C++
11 Oct, 2007 - 01:31 PM
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ok this is what i came up with so far.

CODE
#include <iostream.h>
#include <conio.h>
int main()

{
    int a,i;
    
    cout<<"Enter amount of table";
    cin>>a;
    
    for(i=1;i<=a;i++)
    cout<<a<<endl;
    
    return 0;
}
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jjhaag
RE: Muitiplication Table In C++
11 Oct, 2007 - 01:53 PM
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well, this code will only give you a single line of the values 1...a. you should probably try a nested for loop, something like this:
CODE
for (i=1; i<=a; ++i) {
    for (j=1; j<=a; ++j) {
        //display stuff here
    }
}


and please post your code using code tags - take a look at the grey text on the background of the new post/reply text box.

hope that helps,

-jjh
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adeoluwafemi
RE: Muitiplication Table In C++
11 Oct, 2007 - 06:00 PM
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QUOTE(jjhaag @ 11 Oct, 2007 - 02:53 PM) *

well, this code will only give you a single line of the values 1...a. you should probably try a nested for loop, something like this:
CODE
for (i=1; i<=a; ++i) {
    for (j=1; j<=a; ++j) {
        //display stuff here
    }
}


and please post your code using code tags - take a look at the grey text on the background of the new post/reply text box.

hope that helps,

-jjh



How do i do that? using [code][/code]? and also where u put //display stuff here, wut do u mean by that? comments?
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jjhaag
RE: Muitiplication Table In C++
11 Oct, 2007 - 06:57 PM
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yes, those are the code tags. you should enclose the source code you post in them so that the displayed code is easy to read, as well as to copy and paste.

the two forward slashes indicate the start of a single-line comment, and they were to indicate to you that location is where you should put the display statements.

-jjh
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XenoSophist
RE: Muitiplication Table In C++
12 Oct, 2007 - 09:04 AM
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it seems that a 2D array would work well. If I understand the example enough, the prompt would ask the user to define rows and columns. For instance, if the user entered "9" when prompted, the output table would be 9 rows by 9 columns. The first row would start with 1 and add 1 for the next array element. The second row would start with 2 and add 2 for every column proceeding it etc.

Therefore, your first row would be:
1 2 3 4 5 6 7 8 9
The second row would be:
2 4 6 8 10 12 14 16 18
The third row would be:
3 6 9 12 15 18 21 24 27

This would give the idea of a 9x9 table.

I hope this helps you design your pseudo-code as that should be the first step.

This post has been edited by XenoSophist: 12 Oct, 2007 - 09:05 AM
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sudhakoshti
RE: Muitiplication Table In C++
14 Oct, 2007 - 05:52 PM
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QUOTE(adeoluwafemi @ 11 Oct, 2007 - 02:25 PM) *

ok i have a problem. My professor doesnt teach well and the book we using is very extremely confusing. she told us to do a multiplication table that asks user for the amount of number the table should display.


suppose to look like this when he outputs


Enter amount of number for table: 3


1 2 3
2 4 6
3 6 9


Im not asking for someone to do the work for me cos i wont learn that way but can someone please show me how to make it output like this. I know how to do the for loop and the other loop. But its been giving me headache how to make it display like that and how to make it to be any number the user inputs. Please help



here is a solution to your problem.


#include<stdio.h>
#include<conio.h>
void main()
{
int a[3][3],i,j;
clrscr();
for(i=1;i<=3;i++)
{
for(j=i;j<=(3*i);j=j+i)
{
printf("%d",j);
}
}
getch();
}
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