Math.Pow Problem C#

[rommac100]

http://pastebin.com/gFn2zSXT

 

In the for loop part when trying to have it stop when placement is less than 10. It continues and displays 16 which is the 2^4.

 

Thanks,

[79wjd]

The issue is that it increments before the loop ends. 

 

It will print placement = 8 (2^3) then it will itterate pt to 4. it will run through the loop, set placement =16 (2^4), then print it, then it leaves the loop as 16 !< 10.

 

On a side note, just for the sake of clarity, I would just initizlize double pt and double placement without assigning any values.

 		static void Main(string[] args)			        {			           string numPeoplestr = "Enter the number of people in the group";			           double numPeople = 10;			           double pt; placement; 			 			           double[] pa = new double[10];			 			           for ( pt = 1;  placement < 10; pt++)			           {			 			               placement = Math.Pow(2, pt);			               Console.WriteLine(placement);			 			           }			}			

[CoronaBlue]

The last time the loop runs is when placement is equal to eight. Since eight is less than 10, it updates placement to 16.

[rommac100]

Is there anyway that I can have it stop before it gets the value of sixteen while still using the powers of 2.

[madknight3]

Is there anyway that I can have it stop before it gets the value of sixteen while still using the powers of 2.

 

You could use a do while loop instead of a for loop. That way it'll check the condition at the end of the loop instead of the start.

double pt = 1;double placement = 0;do {    placement = Math.Pow(2, pt);    Console.WriteLine(placement);    pt++;} while (placement < 10)

[rommac100]

Hmm I some how figured it out by reordering it the the write line and placement equals. http://pastebin.com/gFn2zSXT

 

Edit:

Nevermind it did this instead 2, 2, 4, 6, 8.

[rommac100]

Also how did you put the body of code in your reply instead of doing something like pastebin?

[madknight3]

Also how did you put the body of code in your reply instead of doing something like pastebin?

 

It's the code tags. You can write them in around your code or click the blue <> symbol above the reply text.

[madknight3]

Hmm I some how figured it out by reordering it the the write line and placement equals. http://pastebin.com/gFn2zSXT

 

Edit:

Nevermind it did this instead 2, 2, 4, 6, 8.

 

 

After the first call to 

double placement = Math.Pow(2, pt);

You don't increment pt. Your loop needs to be started at 2 instead of 1.

[rommac100]

Nevermind I figured it out. Probably a janky way but whatever.