C# 0 The Complete Reference

PART I

C h a p t e r   3 :  

D a t a   T y p e s ,   L i t e r a l s ,   a n d   V a r i a b l e s  

61

PART IPART I

       Console.WriteLine("The square root of {0} is {1}",

                         n, Math.Sqrt(n));

       Console.WriteLine("Whole number part: {0}" ,

                         (int) Math.Sqrt(n));

       Console.WriteLine("Fractional part: {0}",

                         Math.Sqrt(n) - (int) Math.Sqrt(n) );

       Console.WriteLine();

    }

  }

}

Here is the output from the program:

The square root of 1 is 1

Whole number part: 1

Fractional part: 0

The square root of 2 is 1.4142135623731

Whole number part: 1

Fractional part: 0.414213562373095

The square root of 3 is 1.73205080756888

Whole number part: 1

Fractional part: 0.732050807568877

The square root of 4 is 2

Whole number part: 2

Fractional part: 0

The square root of 5 is 2.23606797749979

Whole number part: 2

Fractional part: 0.23606797749979

The square root of 6 is 2.44948974278318

Whole number part: 2

Fractional part: 0.449489742783178

The square root of 7 is 2.64575131106459

Whole number part: 2

Fractional part: 0.645751311064591

The square root of 8 is 2.82842712474619

Whole number part: 2

Fractional part: 0.82842712474619

The square root of 9 is 3

Whole number part: 3

Fractional part: 0

The square root of 10 is 3.16227766016838

Whole number part: 3

Fractional part: 0.16227766016838

www.freepdf-books.com

---

62

 

P a r t   I :  

T h e   C #   L a n g u a g e

As the output shows, the cast of