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

Why do c++ compilers require name mangling?, A: Name mangling is the rule a...

A: Name mangling is the rule according to which C++ modify function's name into function signature before passing that function to a linker. It is how the linker differentiates amo

Need android app development, Project Description: I am seeking a develo...

Project Description: I am seeking a developer who can start an app from scratch and get it delivered to me as soon as possible. It is a little android based app. A background on

Program to spider''s path display to the screen, Spider webs have two types...

Spider webs have two types of silk, sticky silk and strength silk, spiders do not move on the sticky silken threads only on the strength threads. Assume one type of spider creates

Explain the function of five elements that are on a, explain the function o...

explain the function of five elements that are found on a motherboard#

Program is to define a class as student, Program is to define a class as st...

Program is to define a class as student: Program is to define a class as student and display the records specific depending upon the number class student  {  private:

C program to reverse the elements of array, C program to reverse the elemen...

C program to reverse the elements of array: #define rows 3 #define cols 3 void main() {                 int i=0,j=0;                 int arr[rows][cols];

Explain about the unions, Explain what are Unions? The Unions like as s...

Explain what are Unions? The Unions like as structures, contain members whose individual data types may perhaps differ from one another. Though the members that create a union

Using nested if statement, write a program in c/C++ using nested if stateme...

write a program in c/C++ using nested if statement for calculating the average marks and grades of 5 subjects

How can I fix this to, Write a program consisting of two functions (plus ma...

Write a program consisting of two functions (plus main). The first function should read in a number and then pass this back to main. This value should then be passed into a secon

Develop online slot video game for facebook, Develop Online Slot Video Game...

Develop Online Slot Video Game for Facebook Prepare an online slot video game for a Facebook promotion in order to draw new visits and Increase the number of "likes" of the Face

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