ArkM

I am having problems using the square root function in my program. I have included <cmath> outside of main and my formula using the square root looks like this: area=sqrt(s*(s-a)*(s-b)*(s-c)); but, I keep getting an error that says 'sqrt' cannot be used as a function. I would appreciate any suggestions. …

Hi everyone, This might be a very stupid question to ask and the answer might be very simple but I was just curious to know this. How to display "\n" on output screen in C++? We all know \n is used to enter a new line. But what if I …

One of the questions given to us for the lab exam was to generate the first 10 armstrong numbers. I could generate upto 5 numbers correctly..the rest are wrong. [code] #include<stdio.h> #include<conio.h> void main() { int n=1,a,b,i=1,r; clrscr(); while(i<=10) { a=0; b=n; do { r=b%10; a=a+r*r*r; b=b/10; }while(b>0); if(a==n) { …

How can i print it recursively with one helper function? [img]http://img2.imageshack.us/img2/1690/recursive.th.jpg[/img] Here, n will always be a power of 2 and c will be indicating the column number from which to start the output. The above pattern has been produced with the initial function call RecursivePattern(8,1) It prototype should be …

Hey Everyone, I'm doing a little test for a presentation I'm giving on Tuesday. I wanted to show the performance difference between VB2008, C# and C++. To do this, I have three programs. Each program performs the Fibonacci sequence X times, and can either do it iteratively or recursively. As …

[CODE=C++] #ifndef LIST_H #define LIST_H #include <iostream> typedef char Item; class List{ public: List() {first = NULL; last = NULL;} //~List() void append(Item entry); void remove_last(); void output(); private: struct Node { Item data; Node *next; Node *back; }; Node *first; Node *last; }; #endif [/CODE] I'm writing a class …

hello... I am trying to convert 2 digit numbers to words: example 11= eleven. I saw some other entries on this but they dont include case or switch so far I have: [code=cplusplus] #include <iostream> using namespace std; cout<<"Enter a two-digit number: "; cin>>number; if(number>99) { cout<<"Number out of range"; …

Hi! I'm working on a hobby OS. Almost every time I try to link my files I get a 'undefined reference to' error. As I've been trying to compile with different compilers, the errors generated by the linker changes. I have only been using different ports of the GNU compilers. …

I have to write a program that must compute and display the charges for a patients hospital stay. first the program should ask if the patient was admitted as an in patient or an out patient. If the patient was as an in-patient the following data should be entered: the …

can you call a function inside that same function so that it goes to the beginning of that code to execute it. So even though ur already in the prompt function can u still call it again from withing the code inside the prompt function. Thanks in advance.

Hi guys. I'm pretty new to C program. I've been given this assignment to write a program that asks the user thow many terms of the serires equation to use in approximating PI. The formula given is pi=4X(1- 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13 - …

Hello friends did anybody have implemented the ant based clustering algorithm in C.If so can u pls pass me on the coding.It would of great help to me.

i tried the following coding .it compiled without errors but gave absurd results during runtime. can u pls help me with it? [code=cplusplus] #include<iostream.h> #include<stdlib.h> int main() { int i; cout<<"ten random numbers for the range 0 to 50"<<endl; for(i=0;i<10;i++) { cout<<rand()<<endl; return 0; } }[/code]

Hello, I am trying to compute the GCD non-recursively. I have no errors but when I run the program it aborts because it says c is not intlized. [code=cplusplus] #include "stdafx.h" #include "stdio.h" int main (void) { int a,b,c,r,result; printf("enter a value for a\n"); scanf ("%d", &a); printf("enter a value …

I am not sure why this is occuring. I declared these functions in the header file and it is defined them in the .cpp file but in the main function it does not recognize them. Did I forget something basic or do something illegal? The errors: : error C3861: 'createAndInitializeTextFile': …

hi can any one help me which is the best C++ compiler one can download it freely for C++ programming i will appreciate if some one post any web links for this cheers reddy

Assumption: 32-bit Machine. Here I am going to explain How Virtual table, Virtual pointer for Virtual functions are internally working. First we have understand memory layout. Example 1: How the class's memory layout Code: cpp [code=cpp] class Test { public: int data1; int data2; int fun1(); }; int main() { …

i am try to create a program that prints the numerical value of EOF... any ideas for the function get the value of EOF using the ASCII table????

hi, I recently wrote this code to calculate the hamming distance between any two binary numbers... The program accepts the numbers in decimals, performs a bitwise XOR operation and returns the HD... However, it returns the Hamming distance in decimal... that is if after XOR it gets something like 0010... …

I wrote a function that will search a string with a substring. When the substring is found, it is replaced with another substring. The problem I have with my code is that it wont replace the substring unless it is in the beginning of the string. Here's the code and …

hello. I'm doing a program in c++ and I need to use a system call to "clear" my screen. for linux I use system("clear") but in windows the same is system("clr"). is there some way to find which OS is being used at the moment of execution so the program …

good day to all... does anyone here have a basic tutorial on how to program using C for zigbee...? its just that i have a very important project task in my work which should be accomplished for three months:'( ...i do have basic...i mean enough knowledge programming in C but …

title is self explanatory how do i convert it to a std::string? all this LP stuff makes my brain hurt...

I have created a program without using sqrt and the pwr function but instead have used logs and exponent. The professor said that math.h is not allowed. I am aware that this library is important for computation, but how do I compute the math without using the math.h? Would I …

If i'm scanning from keyboard using getch(), how do i check which arrow key has the user pressed??(Arrow keys have ASCII values same as some other keys so we can't directly check for ASCII values)

Can't seem to figure this out. [CODE] string *array; void addNodes(string names[]) { array = names; //how many elements in the array??? } [/CODE]

hi . can someone plz explain how to do regex in C. input: a text file. aim: read each line from the text & check if a RegEx pattern exists. finally return that pattern if it exists. plz share any algo or code snippets if u have.thx.

[I]Negotiating a consumer loan is not always straightforward. One form of loan is the discount installment loan, which works as follows. Suppose a loan has a face value of $1,000, the interest rate is 15%, and the duration is 18 months. The interest is computed by multiplying the face value …

here is my code: [code]#include <fstream> #include <iostream> #include <string> #include <fstream> #include <string> using namespace std; void displayjulianDates(int, int, int, int, int, int); int main() { //Declare variables int month1; int day1; int year1; int month2; int day2; int year2; //Gets input from user cout << "Please enter the …

hi there, i just want to know what function to use in converting a char into an int like: [code] char temp; cout << "enter something"; cin >> temp; atoi(temp); [/code] is this the right way?