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

Data structures, what are 3 conditions under which the sequential search of...

what are 3 conditions under which the sequential search of a list is preferable to binary search?

Linked list, program for singly linked list with out header

program for singly linked list with out header

Define array of objects, Array of Objects A class is a template, which ...

Array of Objects A class is a template, which can contain data items as well as member functions to operate on the data items. Various objects of the class can also be declared

Define a structure of student class, Define a structure of student class:  ...

Define a structure of student class:  Write a program to define a structure of student record in C. class student { char name[20]; int roll_no; int marks[2];

C++ code, write c++ programm calculate electricity bill with person name,us...

write c++ programm calculate electricity bill with person name,use ,id

Define bit fields, Define Bit Fields Bit Fields permits the packing of ...

Define Bit Fields Bit Fields permits the packing of data in a structure. This is particularly useful when memory or data storage is at a premium. Usual examples: Packing

Loop, Write a program that writes your name on the monitor ten times. Write...

Write a program that writes your name on the monitor ten times. Write this program three times, once with each looping method.

How can i provide printing for whole hierarchy of classes?, A: Provide a fr...

A: Provide a friend operator class Base { public: friend std::ostream& operator ... protected: virtual void printOn(std::ostream& o) const; }; inline std::ostr

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