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

Define namespace in c++, It is a feature in C++ to reduce name collisions i...

It is a feature in C++ to reduce name collisions in the global name space. This namespace keyword assigns a separate name to a library that allows other libraries to use the simila

What does extern mean in a function declaration in c++, It tells the compil...

It tells the compiler that a variable or a function exists, even if the compiler hasn't yet seen it in the file presently being compiled. This variable or function may be distinct

I need online game dvelopment, Project Description: Online game developm...

Project Description: Online game development Online Live Baccarat Game is needed - client program. - server program(IOCP or ect..). - web program(ASP or PHP or etc..

In p = new fred(), Q: In p = new Fred(), does the Fred memory "leak" if  Fr...

Q: In p = new Fred(), does the Fred memory "leak" if  Fred constructor throws an exception? A: No.         If an exception take place during the Fred constructor of p = new F

C program for the no are in ascending order , #include stdio.h> #include...

#include stdio.h> #include conio.h> #include string.h> void main() {           int i=0,j=0,k=0,l=0;           int a[3][3],temp[3][3];           clrscr();

Pointer, void main() { int *p, *q, i ; p=(int*)100; q=(int*)200; i=q-p; pr...

void main() { int *p, *q, i ; p=(int*)100; q=(int*)200; i=q-p; printf("%d",i); } }

Stack, flow chart for push operation in stack

flow chart for push operation in stack

Decodethecode, 6999066263304447777077766622337778 -----> message sent by th...

6999066263304447777077766622337778 -----> message sent by the first smuggler. my name is robert---------> message decoded by the second smuggler. Where ‘0’ denotes the "space".

What is a recursive function, Question 1 Write a program in ‘C' to check w...

Question 1 Write a program in ‘C' to check whether a given number is even or odd Question 2 Explain while and do... while loop with an example Question 3 Write a program

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