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

Need cron job parsing json from api, Need Cron Job Parsing JSON from API, I...

Need Cron Job Parsing JSON from API, Inserting in to DB Project Description: The Project is to prepare a Cron Job with an adjustable interval in seconds and milli seconds. Cr

Loop, A company needs 200 pencils per year . you cannot simply use this pr...

A company needs 200 pencils per year . you cannot simply use this price as the cost of pencils two years from now. Because of inflation the cost is likely to be higher than it is

Conversion operator, What is conversion operator? Explain it with example.

What is conversion operator? Explain it with example.

E^x, Write a program to calculate e^x using the formula: e^x = 1 + x/1! + ...

Write a program to calculate e^x using the formula: e^x = 1 + x/1! + x^2/2! + x^3/3! + ...... Allow the user to enter the integer number x, then do the calculation in a loop (for

C++ coursework programming for engineering, Hi there I am looking for hel...

Hi there I am looking for help with c++ coursework. Could you please provide me with email address to email a copy of it. Thanks

Compiler Design - Limit In The Method Instructions, Raj is a newbie to the ...

Raj is a newbie to the programming and while learning the programming language he came to know the following rules: · Each program must start with ''{'' and end with ''}''

Produce data from fixed ocr areas scanned, Produce data from fixed OCR area...

Produce data from fixed OCR areas scanned. Project Description: Project is to design software which can use character recognition only on certain areas of scanned puff's/ jpe

Define commonly used built-in library functions, Define Commonly Used Built...

Define Commonly Used Built-in Library Functions? Comprise opened a file pointer you will desire to use it for either input or output. The C language supplies a set of functions

C program to demonstrate pointer to string, C program to demonstrate Pointe...

C program to demonstrate Pointer to string: void main() {                 int a;                 char str[]="hello how are you?",*ptr_str;                 ptr_str=&

Explain syntax rules for writing constructor functions, Syntax rules for wr...

Syntax rules for writing constructor functions Its name must be similar as that of the class to which it belongs. It is declared with no return type (not even void). Ho

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