[math] Forum Topics

I made a program to find primes, but it can't find any prime less that 7(e.g. 2, 3, 5) any ideas? [CODE]import math from math import sqrt x = 1 y = raw_input("What number do you wish to find all the primes below? ") y = int(y) while x < …

i know this is a stupid question but i just don't know :\ if i have 2 time variables [CODE] a = 00:00:12 and b = 00:00:05[/CODE] how would i add them together to make [CODE] c = 00:00:17 ?[/CODE] i get the data from the database in this format …

Hey All... This query is waaaay outside my skill set so I can't even fathom how to do this other than the "brut force" method and that's way to slow for my purpose (a mobile app). I have two tables, `Categories` and `Articles`: `Categories` has: `id`, int auto-increment `name` text …

[CODE]#include<stdio.h> #include<string.h> #define SIZE 100 int main(void) { int array[SIZE], i, n, j, sum=0; printf("Enter some integers:"); for (n=0;n<100;++n) { scanf("%d", &array[n]); if(array[n] == -1) { j=n; break; } j=100; } for(j<=100;i>j;++i){ printf("%d", array[n]); } for(j=0;j<n;++j){ sum=sum+array[n]; printf("The sum is %d\n", sum); } return (0); }[/CODE] [I]Im trying to output …

Hello everyone, :) I have exercise for class that I can't complete, I don't understand why my loops aren't working The question--- Write code that will print a multiplication table for 10 positive integers across the columns and 10 positive integers down the rows. Prompt the user for the starting …

the question asked me make a program that would find opens an read a txt file and calculate or display the following. - the number of numbers - sum of all the numbers in the file (running total) -average of numbers in file the .txt file just has 100,200,300,400,500,600,700 each …

below is my current code for a math game i'm having problems creating the answer checking part of it, any assistance is appreciated. [code] import javax.swing.*; import java.util.Random; import java.awt.Button; import java.awt.Color; import java.awt.Dimension; import java.awt.Event; import java.awt.event.*; import javax.swing.*; public class MathPanel extends JPanel { // Declares Labels and …

Greetings! I've been working on this program for the past couple of hours now, and I cant seem to get it right. I'm supposed to write a program that reads in integers from a text file, and then find the sum of the integers. The problem I'm having is with …

Here is class that can be fed directly from split stream like one number per line file (or [URL="http://www.daniweb.com/software-development/python/code/321725"]generator producing 'words'[/URL] from multiple numbers per line).

Howdy! I've searched the forums and Google for ideas but all the information/advice I found was either not helpful or inaccurate. So, perhaps someone here can help point me in the right direction. I'm heading off to University next year but, before I do that, I'd like to study some …

I am facing problem on sum of dynamic array value. For example : [B]tablename : totalamt[/B] ref_no | Amount 1 | 58 2 | 12 3 | 11 i am using check box to select the ref_no. now i am selecting 3 check box now and submit it. Now it …

Hello again! I was given an assignment the other day in C++ and I was suppose to use the counter and add a sentinel so the program knew when to stop. Instructors directions: "The file for this assignment reads a sequence of positive integers from a file (2 3 5 …

So I am supposed to write a class that converts fahrenheit to celsius (& vice versa), calculates the volume of a sphere after a radius is entered, and calculates the hypotenuse of a right triangle, all using nothing but static methods. Here is what I have so far; [CODE]class Fun …

I have this problem: [CODE]struct Position { float x; float y; float z; }; bool CheckCollision(Position *vertices, int numvertices, Position start, Position end) { //return true if there was NOT a collision with the polygon defined by the vertices and the vector defined by the two positions. }[/CODE] I dont …

This is the program I need to write: At each step the user is asked if she wants another number. If she does, the program adds a random number between 1 and 10 onto her total. The game ends when she quits, or when her total is 18 or higher. …

So I need help on how to calculate how much change to give back to a customer. I need the program to give change in the least bills and coins as possible. Ex. Customer's item costs $13.37. He/She pays $20. Program gives back: One $5 Bill One $1 Bill Two …

I am currently making my project and it involves graphing functions. I have chosen Java because as I have surfed the net, i was able to download a library (JGraphT) that tells me that it can help me graph mathematical functions. Now, my problem is, i dont know how to …

[CODE]Option Explicit Private Sub cmdExit_Click() End End Sub Private Sub cmdRun_Click() Dim num(19) As Integer Dim i As Integer Dim sum As Integer grd.Rows = 2 grd.Cols = 2 grd.Clear For i = 0 To 19 Step 1 num(i) = InputBox("Enter any integer") lstno.AddItem (num(i)) Next i grd.TextMatrix(0, 0) = …

What polar coordinates are is explained [url=http://en.wikipedia.org/wiki/Polar_coordinate_system]here[/url]. I wanted to draw some polar functions myself, so I changed my [url=http://www.daniweb.com/software-development/csharp/code/217204]plotting class [/url] a bit and added a polar struct to a new project.. Just posted code for the Plot class and the polar point structure here. You can find an …

I have a table similar to the one below: Month | Item | Qty | Cost of Items purchased Jun | 1 | 10 | 50 May | 1 | 5 | 0 Apr | 1 | 5 | -18 Mar | 1 | 7 | 0 Feb | 1 …

How to calculate the sum & product of dis-similar numbers of an array[10]. i do have a code but it stop working after a certain limit, so please help.....

the following program is to print all possible sum combinations of a number for example 6=1+5,2+4,3+3,1+1+4,1+2+3 12=3+9,4+8,5+7,.......,1+1+2+3+5 but i m not getting any output...maybe there's a problem with proper ending of loops pls help[CODE]import java.io.*; public class sumpermutations { public void main()throws IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int input,i,j,d=0,s=0,num=0,d1=0; …

Hi i am just new to VB.NET and our teacher told us to experiment on for loop in a ODD SUM Program you need to add all odd numbers from Input One to Input Two like that but i can't stop it from adding continuously for example i input the …

How would I do this in 1 line [code] $name = $firstName + " " + $lastName; //output: 0 [/code] the problem is what I think it is, is that its trying to add like mathematics. whilst I want the '+ " " +' to become a space in between …

Hi all, I'm new to this forum and I am also new to Python and coding in general. While I've gotten through basic tutorials on most general topics of Python such as series, dictionary, parameters, loops, and so forth I am still very much a newbie (as you will see …

A little program I made to try and remeber C++, first program I've written in C++ in about a year. Tested and working under windows 7 64 bit, run via command line. If you have any improvements or ideas please leave a comment. Cheers K0ns3rv

I have a query which generates a soccer standings table and although it works fine there I am trying to implement a couple of variations on it but everything I have tried has failed. I have searched and asked many times and for both problems and it seems as though …

I find C# very well suited for doing math and all sorts of calculations, so here is an example. Just start a Console application and fill in the code. Have fun! The code also shows a use of delegates and some Console functions. If you don't know what the Newton-Raphson …

hey im new in java. i needto make GUI for my program buh im confused as to what to wirte in GUI codes and wat to write in Main codes etc. could someone plz help me? mathprogram.java main class [CODE]public class mathprogram { public static void main (String[] args){ addition …

I've searched a while, can't find this... I'm looking for a way to present two choices for values, then to have a result immediately appear based on those choice. IE... The first choice is an option between 1, 2, 3, 4, or 5 players... and the second choice is an …