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

Palindrome, A palindrome is a string that reads the same from both the ends...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Euclidean Algorithm , how can I find the GCD of 2 given numbers using Eucli...

how can I find the GCD of 2 given numbers using Euclidean Algorithm ?

Implementation of the dictionary class, Implementation of the Dictionary cl...

Implementation of the Dictionary class: int Dictionary::find_word(char *s) {    char word[81];    for (int i = 0; i       if (stricmp(words[i].get_word(word),s) =

Explain the symbolic constants in c language, Explain the Symbolic Constant...

Explain the Symbolic Constants in c language? Symbolic constants are the constants of any type that declared by using the #define compiler directive and it is a preprocessor di

Arrays, how do I randomised numbers in an array?

how do I randomised numbers in an array?

Structures of flowchart, Ask Draw a flowchart that print all even numbers f...

Ask Draw a flowchart that print all even numbers from 2 until 10

Flight Departure in C, I really have a hard time analyzing how to write a c...

I really have a hard time analyzing how to write a code in C. It''s all bout Time Departure and we must used a 24 hour clock. Can u help me?

Experiment with the small test matrix, For this assignment, I've provided a...

For this assignment, I've provided a data file called 'elevation.mat', which contains the elevation data you'll be working with.   Type load elevation.mat to get the varia

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