class Harmonic

{

public static void main(String…s)

{

int n,i;

float sum=0;

n=Integer.parseInt(s[0]);

for(i=1;i<=n;i++)

{

sum=sum+(float)1/i;

}

System.out.println(“nSum=”+sum);

}

}

class Harmonic

{

public static void main(String…s)

{

int n,i;

float sum=0;

n=Integer.parseInt(s[0]);

for(i=1;i<=n;i++)

{

sum=sum+(float)1/i;

}

System.out.println(“nSum=”+sum);

}

}

class Harmonic

{

public static void main(String…s)

{

int n,i;

float sum=0;

n=Integer.parseInt(s[0]);

for(i=1;i<=n;i++)

{

sum=sum+(float)1/i;

}

System.out.println(“nSum=”+sum);

}

}

Plz tell the code for harmonic series

S = 1-1/2 + 1/3 – 1/4…… -1/10

I want Harmonic series program for the below expression.

1/(n+1)+1/(n+2)+1/(n+3)+………1/(n+n);

please,help me for this.

still there no update for my request.please send the reply for the request

int s=0;

for(i=1;i<=n;I++)

{

s=s+(1/(n+I));

}

Sopln(s);

How to find the sum of series

Question:

1*1+ 2*2+3*3*3+4*4+5*5+6*6*6+……

thanx a lot bro…

why is (float) used in following statement?

sum=sum+(float)1/i;

Because if you divide 1 by i which is an integer your ans will be an integer. E.g. if i=2, 1/i will give you 0 and not 0.5, that’s why you typecast either numerator or denominator to float, so that the division 1/i is also float

import java.util.Scanner;

class sum_of_hp

{

public static void main(String args[])

{

double num,i,sum=0;;

Scanner sc=new Scanner(System.in);

System.out.print(“upto how many terms you want to sum = “);

num=sc.nextInt();

for(i=1;i<=num;i++)

{

sum=sum+(1/i);

}

System.out.println("sum of the series upto "+num+" terms is " +sum);

}

}

instead of using typecasting why didnot you take double type it is easier than type casting

import java.util.Scanner;

class sumofhp

{

public static void main(String args[])

{

double num,i;

double sum=0;

Scanner sc=new Scanner(System.in);

System.out.print(“upto how many terms you want to sum = “);

num=sc.nextInt();

for(i=1;i<=num;i++)

{

sum=sum+(1/i);

}

System.out.println("sum of the series upto "+num+" terms is " +sum);

}

}

instead of taking two different data type int and float can i use double type?