Hello everybody,

this is the first time posting here, since it is the first time I couldn’t find an answer to a question using Google.

A little context to what I am doing: I wanted to learn C# took up Brackey’s course on Youtube and since I already learned C I wanted to take his Calculator example a little further. I included the ability to add, subtract, multiply and divide by using a switch and asking for an operator. Now I also wanted to include square root of a number and the square of a number. So I used the Math.Pow(double, double) function to include it.

Now this is my code for it:

case "root": num03 = Math.Pow (num01, 1/2); break; case "square": num03 = Math.Pow (num01, 2); break;

Edit: I had to change the code example to not use colours since it was showing the html code. Might have something to do with me using mono on an ubuntu.

Edit 2: Ok, still doing it for me. If there is a problem with being able to read the code, let me know or if it is just my pc.

Now here is the weird part:

After bug testing with the number 9 (I also included a few debug “Console.WriteLine(string);” in the earlier code to make sure that it didn’t have anything to do with the variable being saved wrongly), I got 1 as the solution for the “root” case and 81 for the “square” case.

Last time I checked the square root of 9 is 3. Where does this problem come from?

Note: For further bug testing I used “Math.Sqrt(double)” instead of “Math.Pow(double, double)” and the solution was 3. So while I can get the program to function I am still curious to what is the reason for such a math error.

Thank you for reading

InSicK.