CALCULATING EXPONENT USING - math.h

#include<iostream.h>

#include<conio.h>

#include<math.h>

void main()

{

 clrscr();

 int x, n;

 cout<<"Enter the base ";

 cin>>x;

 cout<<"Enter the power ";

 cin>>n;

 cout<<"The result of the given exponent is : "<<pow(x,n);

 getch();

}

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OUTPUT:(click to enlarge the image)

PYRAMID OF ALPHABETS

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int n;

 cout<<"Enter the number of lines : ";

 cin>>n;

 for( int i=1 ; i<=n ; i++ )

 {

   for ( int j=1 ; j<=n-i ; j++ )

    {

     cout<<" ";

    }

   for ( int k=1 ; k<=i ; k++ )

    {

     cout<<char (64+k);

    }

   for ( int l=i ; l>=2 ; l-- )

       cout<<char (63+l);

   cout<<"\n";

 }

 getch();

}

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OUTPUT:(click to enlarge the image)

ASCII CODE TO CHARACTER

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int num;

 cout<<"Enter the ASCII code : ";

 cin>>num;

 cout<<"The corresponding character is : "<<char(num);

 getch();

}

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OUTPUT:(click to enlarge the image)

CHARACTER TO ASCII CODE

#include<iostream.h>

#include<conio.h>

char ch;

char asc(char ch)

{

 cout<<"Enter a character : ";

 cin>>ch;

 cout<<"The ASCII code for the given character is : "<<int(ch);

 return 0;

}

void main()

{

  clrscr;

  asc(ch);

  getch();

}

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OUTPUT:(click to enlarge the image)

INTER CONVERSION OF CASES OF ALPHABET--USING LOGIC

#include<iostream.h>

#include<conio.h>

char ch;

char cse(char ch)

{

 if((97<=int(ch))&&(int(ch)<=122))

   {

    cout<<"\nThe given character is in lowercase"

      <<"\nThe corresponding uppercase is - ";

    return(char(int(ch)-32));

   }

 else if (65<=int(ch)<=90)

   {

    cout<<"\nThe given character is in uppercase"

      <<"\nThe corresponding lowercase is - ";

    return(char(int(ch)+32));

   }

}

void main()

{

  clrscr();

  cout<<"Enter a character : ";

  cin>>ch;

  cout<<cse(ch);

  getch();

}

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OUTPUT:(click to enlarge the image)

DOUBLE OF A MATRIX

#include<iostream.h>

#include<conio.h>

void main()

{

 int x[10][10], y[10][10], n, m, i, j;

 cout<<"\nEnter the number of rows :";

 cin>>n;

 cout<<"Enter the number of columns :";

 cin>>m;

 cout<<"Enter the matrix X :\n";

 for(i=0 ; i<n ; i++)

 {

   for(j=0 ; j<m ; j++)

     cin>>x[i][j];

 }

 cout<<"The matrix X :\n";

 for(i=0 ; i<n ; i++)

 {

   cout<<"\n";

   for(j=0 ; j<m ; j++)

     cout<<" "<<x[i][j];

 }

 for(i=0 ; i<n ; i++)

 {

   for(j=0 ; j<m ; j++)

     y[i][j]= 2*x[i][j];

 }

 cout<<"\nThe double of the given matrix : ";

 for(i=0 ; i<n ; i++)

 {

   cout<<"\n";

   for(j=0 ; j<m ; j++)

     cout<<" "<<y[i][j];

 }

 getch();

}

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OUTPUT:(click to enlarge the image)

SUM OF TWO MATRICES : SIMPLE

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int x[10][10], y[10][10], z[10][10] , n, m, i, j;

 char dec;

 cout<<"The number of rows and columns shoud be equal in both the matrices for any \narithmentic operation ";

 do{

    cout<<"\nEnter the number of rows :";

    cin>>n;

    cout<<"Enter the number of columns :";

    cin>>m;

    cout<<"Enter the matrix X :\n";

    for(i=0 ; i<n ; i++)

    {

      for(j=0 ; j<m ; j++)

      cin>>x[i][j];

    }

    cout<<"The matrix X :\n";

    for(i=0 ; i<n ; i++)

    {

      cout<<"\n";

      for(j=0 ; j<m ; j++)

      cout<<" "<<x[i][j];

    }

    cout<<"\nIs the matrix correct? (Y/N) : ";

    cin>>dec;

 }while(dec=='N'|| dec=='n');

do{

   cout<<"\nEnter the matrix Y :\n";

   for(i=0 ; i<n ; i++)

   {

     for(j=0 ; j<m ; j++)

       cin>>y[i][j];

   }

   cout<<"The matrix Y :\n";

   for(i=0 ; i<n ; i++)

   {

     cout<<"\n";

     for(j=0 ; j<m ; j++)

       cout<<" "<<y[i][j];

   }

   cout<<"\nIs the matrix correct? (Y/N) : ";

      cin>>dec;

}while(dec=='N'|| dec=='n');

 for(i=0 ; i<n ; i++)

 {

   for(j=0 ; j<m ; j++)

     z[i][j]= x[i][j] + y[i][j];

 }

 cout<<"\nThe sum of the two given matrices : ";

 for(i=0 ; i<n ; i++)

 {

   cout<<"\n";

   for(j=0 ; j<m ; j++)

     cout<<" "<<z[i][j];

 }

 getch();

}

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OUTPUT:(click to enlarge the image)

SUM OF TWO MATRICES : SPECIAL DESIGN

#include<iostream.h>

#include<conio.h>

int n, m , x[3][3], y[3][3], z[3][3], i, j, k, l;

void inpt(int a[3][3] , int n , int m)

{

  for(i=0 ; i<n ; i++)

    for(j=0 ; j<m ; j++)

      cin>>a[i][j];

  cout<<"the matrix :\n";

  for(i=0 ; i<n ; i++)

  {

    cout<<"\n";

    for(j=0 ; j<m ; j++)

      cout<<a[i][j];

  }

  cout<<"\n";

}

void sum(int x[3][3], int y[3][3] , int z[3][3], int n, int m)

{

  for(i=0 ; i<n ; i++)

    for(j=0 ; j<m ; j++)

      z[i][j]= x[i][j] + y[i][j];

}

void otpt(int x[3][3], int y[3][3] , int z[3][3], int n, int m)

{

  for(i=0 ; i<n ; i++)

  {

    if(i==1)

    {

      for(j=1 ; j<=1 ; j++)

      cout<<" "<<x[i][j]<<" +";

      for(k=1 ; k<=1 ; k++)

      cout<<" "<<y[i][k]<<" =";

      for(l=1 ; l<=1 ; l++)

      cout<<" "<<z[i][l];

    }

    else

    {

      for(j=0 ; j<3 ; j++)

      {

      if(j==1)

        continue;

      cout<<x[i][j]<<" ";

      }

      for(k=0 ; k<3 ; k++)

      {

      if(k==1)

        continue;

      cout<<y[i][k]<<" ";

      }

      for(l=0 ; l<3 ; l++)

      {

      if(l==1)

        continue;

      cout<<z[i][l]<<" ";

      }

    }

    cout<<"\n";

  }

}

void main()

{

  clrscr();

  cout<<"Enter the number of rows : ";

  cin>>n;

  cout<<"Enter the number of columns : ";

  cin>>m;

  cout<<"Enter the 1st matrix :\n";

  inpt(x,n,m);

  cout<<"Enter the 2nd matrix :\n";

  inpt(y,n,m);

  sum(x,y,z,n,m);

  cout<<"\nThe sum of the given matrices :\n";

  otpt(x,y,z,n,m);

  getch();

}

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OUTPUT:(CLICK TO ENLARGE)

PRIME FACTORISATION

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int n, x, m;

 cout<<"Enter any number : ";

 cin>>n;

 cout<<"Prime factors : \n";

 m=n;

 for(int i=2; i<=n/2;)

  {

   x=m%i;

   if(x==0)

    {

     cout<<i<<"\n";

     m=m/i;

    }

   else

    i=++i;

  }

 getch();

}
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OUTPUT:(click on image to enlarge)

CHECK EVEN OR ODD NUMBER

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int a;

 cout<<"Enter any number : ";

 cin>>a;

 (a%2==0)?cout<<"Even number":cout<<"Odd number";

 getch();

}
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OUTPUT:(click on image to enlarge)

CHECK FOR PRIME NUMBER

#include<iostream.h>

#include<conio.h>

void main()

{

 clrscr();

 int n, x;

 cout<<"Enter a number :";

 cin>>n;

 for(int i=2; i<=n/2; i++)

  {

   x=n%i;

   if(x==0)

    {

     cout<<"\nNon-prime number";

     i=n+1;

    }

  }

 if(x>0)

  cout<<"\nPrime number";

 getch();

}
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OUTPUT:(click on image to enlarge)