Write a program to find Fibonacci series of n numbers in Python.

 In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence:

01, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144.....

The Fibonacci spiral: an approximation of the golden spiral created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci tiling; this one uses squares of sizes 1, 1, 2, 3, 5, 8, 13, 21, and 34.

By definition, the first two numbers in the Fibonacci sequence are either 1 and 1, or 0 and 1, depending on the chosen starting point of the sequence, and each subsequent number is the sum of the previous two. 

Information source: wikipedia.org

Program:->

Output

def fibo( x ):
    f = -1; s = 1
    for i in range(0,x):
        n = f + s
        f = s
        s = n
        print n
    return;
n = input ("Enter the total elements in the series: ")
print "The Fibonacci series is: "
fibo(n)

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Write a program to find Fibonacci series of n numbers in Java.

  In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence:

01, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144.....

The Fibonacci spiral: an approximation of the golden spiral created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci tiling; this one uses squares of sizes 1, 1, 2, 3, 5, 8, 13, 21, and 34.

By definition, the first two numbers in the Fibonacci sequence are either 1 and 1, or 0 and 1, depending on the chosen starting point of the sequence, and each subsequent number is the sum of the previous two. 

Information source: wikipedia.org

Program:->

Output

import java.util.Scanner;
public class seFibo {
    public static int fibo(int x) {
        int f = -1, s = 1, n;
        for (int i = 0; i < x; ++i) {
            n = f + s;
            f = s;
            s = n;
            System.out.println( n );
        }
        return (0);
    }
    public static void main(String[] args) {
        int n, i;
        Scanner sc = new Scanner (System.in);
        System.out.print("Enter the total elements in the series: ");
        n = sc.nextInt();
        System.out.println("The Fibonacci series is: ");
        fibo(n);
    }
}

Note: The program must be saved with name "SeFibo.java". 

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Write a program to find factorial of a number in Python.

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,

5! = 5  *  4  *  3  *  2  * 1 = 120.

The value of 0! is 1, according to the convention for an empty product.

The factorial operation is encountered in many areas of mathematics, notably in combinatorics, algebra, and mathematical analysis. Its most basic occurrence is the fact that there are n! ways to arrange n distinct objects into a sequence (i.e., permutations of the set of objects). This fact was known at least as early as the 12th century, to Indian scholars. Fabian Stedman in 1677 described factorials as applied to change ringing.

Information source: wikipedia.org

Program:->

Output

f = 1

x = input("Enter a number: ")

for i in range(1,x+1):

    f = f * i

print "Factorial: %d" % f

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Write a program to find factorial of a number in Java.

  In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,

5! = 5  *  4  *  3  *  2  * 1 = 120.

The value of 0! is 1, according to the convention for an empty product.

The factorial operation is encountered in many areas of mathematics, notably in combinatorics, algebra, and mathematical analysis. Its most basic occurrence is the fact that there are n! ways to arrange n distinct objects into a sequence (i.e., permutations of the set of objects). This fact was known at least as early as the 12th century, to Indian scholars. Fabian Stedman in 1677 described factorials as applied to change ringing.

Information source: wikipedia.org

Program:->

Output

import java.util.Scanner;
public class SeFact {
    public static void main(String[] args) {
        int x, f = 1;
        System.out.print("Enter a number: ");
        Scanner sc = new Scanner(System.in);
        x = sc.nextInt();
        for (int i = 1; i <= x; ++i) {
            f = f * i;
        }
        System.out.println("Factorial: " + f);
    }
}

Note: The program must be saved with name "SeFact.java" 

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