Thursday, October 13, 2011

Write a program to read an array of numbers and evaluate and display its mean, variant and deviant

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<math.h>

   4:  void main()

   5:  {

   6:  float x[50];

   7:  int n,i;

   8:  float sumx=0,sumx2=0;

   9:  float var,mean,sd;

  10:  printf("Number of elements in an array:");

  11:  scanf("%d",&n);

  12:  printf("\nEnter the elements:\n");

  13:  for(i=0;i<n;i++)

  14:  {

  15:  scanf("%f",&x[i]);

  16:  sumx=sumx+x[i];

  17:  sumx2=sumx2=x[i]*x[i];

  18:  }

  19:  mean=sumx/n;

  20:  var=1.0/n*(sumx2-(mean*mean));

  21:  sd=sqrt(var);

  22:  printf("\nThe array is:\n");

  23:  for(i=0;i<n;i++)

  24:  printf("%.2f ",x[i]);

  25:  printf("\nIts mean = %.2f \nvariant = %.2f\nStd deviation =%.2f\n",mean,var,sd);

  26:  getch();

  27:  }

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  void main()

   4:  {

   5:  int i,j,n;

   6:  float x[50];

   7:  printf("Enter the number of elements in array:");

   8:  scanf("%d",&n);

   9:  for(i=0;i<n;i++)

  10:  {

  11:  printf("\nEnter the element no %d:",i);

  12:  scanf("%f",&x[i]);

  13:  }

  14:  printf("\nOriginal array is:\n");

  15:  for(i=0;i<n;i++)

  16:  printf("%.2f ",x[i]);

  17:  printf("\n");

  18:  for(j=0;j<n-1;j++)

  19:      for(i=0;i<n-1;i++)

  20:      {

  21:      if(

  22:      x[i]>x[i+1])

  23:          {

  24:          float p,q;

  25:          p=x[i];

  26:          q=x[i+1];

  27:          x[i]=q;

  28:          x[i+1]=p;

  29:          }

  30:      }

  31:  printf("\nThe sorted array is:\n");

  32:  for(i=0;i<n;i++)

  33:  printf("%.2f ",x[i]);

  34:  printf("\n");

  35:  getch();

  36:  }

   1:  #include<conio.h>

   2:  #include<stdio.h>

   3:  float max_array(int n,float x[])

   4:  {

   5:  int i;

   6:  float max=-1.0E38;

   7:  for(i=0;i<n;i++)

   8:  if(x[i]>max)max=x[i];

   9:  return(max);

  10:  }

  11:  void main()

  12:  {

  13:  int n,i;

  14:  char ch;

  15:  float x[50];

  16:  printf("\nEnter the array:\n");

  17:  for(i=0;i<50;i++)

  18:  {

  19:  scanf("%f%c",&x[i],&ch);

  20:  if(ch=='\n')

  21:  break;

  22:  }

  23:  n=i+1;

  24:  printf("The array is:\n");

  25:  for(i=0;i<n;i++)

  26:  printf("%7.2f",x[i]);

  27:  printf("\nmax num is: %7.2f\n",max_array(n,x));

  28:  getch();

  29:  }

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  void main()

   4:  {

   5:  char ch;

   6:  printf("Enter the character:\n");

   7:  ch=getche();

   8:  printf("\nASCII value of %c is %d\n",ch,ch);

   9:  getch();

  10:  }

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  void main()

   4:  {

   5:  int i,n;

   6:  char ch;

   7:  float x[20];

   8:  float max=-1.0E38;

   9:  printf("\nEnter the array:\n");

  10:  for(i=1;i<20;i++)

  11:  {

  12:  scanf("%f%c",&x[i],&ch);

  13:  if(ch=='\n')

  14:  break;

  15:  }

  16:  n=i+1;

  17:  for(i=0;i<n;i++)

  18:  {

  19:  if(x[i]>max)max=x[i];

  20:  }

  21:  printf("\nThe array is:");

  22:  for(i=0;i<n;i++)

  23:  printf("%7.2f",x[i]);

  24:  printf("\nmaximum num is %7.2f\n",max);

  25:  getch();

  26:  }

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<math.h>

   4:  void main()

   5:  {

   6:  float a,b;

   7:  printf("Enter the two sides of right triangle:");

   8:  scanf("%f%f",&a,&b);

   9:  printf("\hypotenuse of right triangle is %f\n",hypot(a,b));

  10:  getch();

  11:  }

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<math.h>

4:

   5:  float getdegree(float radians)

   6:  {

   7:  float degree;

   8:  float pie=3.14159;

   9:  degree=(radians*180)/pie;

  10:  return(degree);

  11:  }

12:

  13:  float getangle(float x,float y, float z)

  14:  {

  15:  float rads;

  16:  float degs;

  17:  rads=(y*y+z*z-x*x)/(2.0*y*z);

  18:  rads=acos(rads);

  19:  degs=getdegree(rads);

  20:  return(degs);

  21:  }

  22:  void main()

  23:  {

  24:  float a,b,c,A,B,C;

  25:  printf("Enter the sides of the triangel: ");

  26:  scanf("%f%f%f",&a,&b,&c);

  27:  A=getangle(a,b,c);

  28:  printf("Angle A=%f degrees\n",A);

  29:  B=getangle(b,a,c);

  30:  printf("Angle B=%f degrees\n",B);

  31:  C=getangle(c,a,b);

  32:  printf("Angle C=%f degrees\n",C);

  33:  getch();

  34:  }