C# problem

Question

Hello guys I’m working on a project and I need help
How do I raise a number to its power in C#?
In python we use ** but I don’t know of C#

Answer 1

Math.Pow(x, y)

Answer 2

Math.Pow gives you a double value, you cannot store it in an int variable.

double radsq = Math.Pow(rad, 2);
double area = pi * radsq;

But your original approach is also correct, raising to the second power is the same as multiplying by itself.

double area = pi * rad * rad;

Answer 3

Is it getting wrong result? Or Error in code? Add details..
Show the code snippet pls..

Answer 4

For input 5:

First :
rad = 5*2 = 10;
area = 3.14 * 10 = 31.4

// use rad*=rad; instead..

Second :
Math.Pow(5, 2) => 25.0 store in double type
area = 3.14 * 25.0 = 78.5

Answer 5

Ive done that but still didnt give correct answer

Answer 6

Im to get the area of a circle after asking the user for radius. Now here’s my code, please help me review

static void Main(string[] args)
{
const double pi = 3.14;
double radius;

//your code goes here
int rad = Convert.ToInt32(Console.ReadLine());
rad *= 2;
double area = pi * rad;
Console.WriteLine(area);

}
}
}

Answer 7

Adding Math.Pow still gives me error

static void Main(string[] args)
{
const double pi = 3.14;
double radius;

//your code goes here
int rad = Convert.ToInt32(Console.ReadLine());
rad = Math.Pow(rad, 2);
double area = pi * rad;
Console.WriteLine(area);

}
}
}