Write a program to compute the equation, C/C++ Programming

Assignment Help:

  Write a program to compute the following equation for values of time.  
 
      y = 2x+3
 
The values of time are stored in the file program.dat and the solution should be displayed on the screen and stored in a file called program.out.
 
Answer
 
  #include stdio.h
  #include stdlib.h
  void main()
    {
    char prompt;
    
     Date: 26th August 2012 
    Version 1.0 
    Function : ASCII file handling       
     Modifications:   none*/
 
  /* Define I/O streams */
  FILE *fptr,*fptw;
  float x,y;
  fptr = fopen("program.dat","r");

  if (fptr == NULL)  
  {
  /* Check for error */
  printf("Cannot find the file program.dat\n\r");
  exit(1);
  }
  fptw = fopen("program.out","w");
  if (fptw == NULL)
  {
    /* Check for error */
 
  printf("Cannot create a new file called program.out");
  fclose(fptr);
  exit(1);
  } 
  while (fscanf(fptr,"%f",&x) != EOF)
  {
  /* This repeats the read till fscanf returns back an End of file marker i.e No 
data left */
   y = 2*x+3;
  printf("X = %f Y=%f\n\r",x,y);
  fprintf(fptw,"X = %f Y=%f\n\r",x,y);
  }
  printf("I have finished the computation\n\r");
  fclose(fptr);
  fclose(fptw); 
  printf("Press and key to exit \n\r");
  scanf("\n%c",&prompt);
  }
 
Original data can be entered using the application 'NOTEPAD', or 'Edit' likewise the output can be read by Notepad or any word processor set to text mode.


Related Discussions:- Write a program to compute the equation

Functions, differentiate between inbuilt and user defined functions

differentiate between inbuilt and user defined functions

Lexicographically preceding permutation, Given an integer n and a permutati...

Given an integer n and a permutation of numbers 1, 2 ... , n-1, n write a program to print the permutation that lexicographically precedes the given input permutation. If the given

It/218.., Write a program that does the following: Calculates the Velocity ...

Write a program that does the following: Calculates the Velocity and Momentum of an object. The formula for the velocity is V=d/t and the formula Momentum is m=mass*velocity. Your

Required, requiredrequiredrequiredrequiredrequiredrequiredrequiredrequired

requiredrequiredrequiredrequiredrequiredrequiredrequiredrequired

External iterator and an internal iterator, What is the difference between ...

What is the difference between an external iterator and an internal iterator? Ans) An internal iterator is executed with member functions of the class that has items to step th

Explain union, Unions A union is also like a structure, except that onl...

Unions A union is also like a structure, except that only single variable in the union is stored in the allocated memory at a time. It is a collection of mutually exclusive var

What is a conversion constructor c++, A constructor that accepts one argume...

A constructor that accepts one argument of a dissimilar type.

Car rental system, complex coding with structure and file handling

complex coding with structure and file handling

Program is to define a class as employee, Program is to define a class as e...

Program is to define a class as employee: Write a program to define a class as employee and collect information about them by using classes and object class employee   {

Contacts manager data and image facebook sync, Project Description: coll...

Project Description: collect / modify person records / photo images/ lookup / facebook iphone and ipad App basic function : 1 user will configure facebook connection

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd