homework

question with its query

Hi this is my homework and the question is this: List the average balance of customers by city and short zip code (the first five digits of thezip code). Only include customers residing in Washington State (‘WA’). also the Customer table has 5 columns(Name,Family,CustZip,CustCity,CustAVGBal) I wrote the query like below is this correct?...

AI navigation around a 2d map - avoiding obstacles.

Hey there, I know my question seems pretty vague, but I can't think of a better way to put it, so I'll start off by explaining what I'm trying to do. I'm currently working on a project whereby I've been given a map and I'm coding a 'Critter' that should be able to navigate its way around the map; the critter has various other functions...

Can't get Jacobi algorithm to work in Objective-C

Hi, For some reason, I can't get this program to work. I've had other CS majors look at it and they can't figure it out either. This program performs the Jacobi algorithm (you can see step-by-step instructions and a MATLAB implementation here). BTW, it's different from the Wikipedia article of the same name. Since NSArray is one-dimen...

My PHP script for sending emails wont send

Well I'm working on a school project, and I uploaded my script to send emails. I'm pretty much using whats defined here: http://www.webcheatsheet.com/PHP/send_email_text_html_attachment.php . Now, all I really changed(other than the contents), is the receiver, to my email address. However, I'm not getting it in my inbox. Is there someth...

IE8 error when using dyanamic form actions

Hello all: Please go here to see an iframe based web app. Click on the map of Australia, choose a city, then buy some tickets. Now you will see the cart form located on the lower right corner. The problem is in IE8, I cannot delete checked rows from the table; whereas in other browsers such as FireFox3.6, Opera10, Safari4 and Chrome4, t...

Scheme function to remove first element

write a scheme function that remove the first top level occurrence of a given item from a list of items. eg given list (a b c) item b, result list (a c) plz help me ...

Why is my code not printing anything to stdout?

I'm trying to calculate the average of a student's marks: import java.util.Scanner; public class Average { public static void main(String[] args) { int mark; int countTotal = 0; // to count the number of entered marks int avg = 0; // to calculate the total average Scanner Scan = new Sca...

how to count multiples of numbers in an input file?

i was trying to count the number of multiples of 2, 3, and 6 respectielly from the users input file. but for some reason, my counter is not working. can any bosy hep me please. my code: #include <stdio.h> int main (void) { int num[12]; int i; int counttwo; int countthree; int countsix; int total=0; printf("enter 12 integer...

Linked List. Insert integers in order

I have a linked list of integers. When I insert a new Node I need to insert it not at the end, but in oder... i.e. 2, 4, 5, 8, 11, 12, 33, 55, 58, 102, etc. I don't think I am inserting it in the correct position. Do see what Im doing wrong? Node newNode = new Node(someInt); Node current = head; for(int i=0; i<count; i++){ ...

Write a program that allows the user to enter a string and then prints the letters of the String separated by comma.

The output is always a String, for example H,E,L,L,O,. How could I limit the commas? I want the commas only between letters, for example H,E,L,L,O. import java.util.Scanner; import java.lang.String; public class forLoop { public static void main(String[] args) { Scanner Scan = new Scanner(System.in); System....

SQL to display an event on start date, end date and any days in between.

Hello, This should be fairly simple, but I can't get my head around it. I have an event in my database with a startDate and an endDate. I need to display this event (based on the current date) on every day the event occurs. So if the event starts on the 3rd of May and finishes on the 7th of May, the SQL query must find it on every si...

Using recursion to sum two numbers (python)

I need to write a recursive function that can add two numbers (x, y), assuming y is not negative. I need to do it using two functions which return x-1 and x+1, and I can't use + or - anywhere in the code. I have no idea how to start, any hints? ...

What's the difference between sound and unsound reasoning?

In terms of Artificial Intelligent and Logic Knowledge, What is the difference between sound and unsound reasoning? Also, what kind of search Does ID3 algorithm use? Is it Breadth-first search? Thanks ...

I need to take an array of three lines in a text file and sort them base on the first line in Java.

I need to take an array of three lines in a text file and sort them base on the first line in Java. I also need to manipulate this as well and then print to screen. I have a test file that is formatted like this: 10 Michael Jackson 12 Richard Woolsey I need to input this from a text file and then rearrange it based on the number asso...

Socket programming question

I am given the following declaration: char inbuff[500], *ptr; int n, bufferlen; Write a program segement to receive a message having 500 bits from the TCP socket sock and store this message in inbuff. My answer is: n = recv( sock, inbuff, strlen( inbuff ), 0 ); However, I am not sure why *ptr is given in the declaration. So, I w...

Cache Simulator in C

Ok this is only my second question, and it's quite a doozy. It's for a school assignment, but no one (including the TAs) seems to be able to help me. It's kind of a tall order but I'm not sure where else to turn. Essentially the assignment was to make a cache simulator. This version is direct mapping and is actually only a small portion...

Haskell Binary Tree Function (map)

How can i define a Haskell function which will apply a function to every value in a binary tree? So i know that it is similar to the map function - and that its type would be: mapT :: (a -> b) -> Tree a -> Tree b but thats about it... ...

longest string in texts

I have meet following problem too for example there is given two text find longest string that occur in both i think we should create string array where we should put common srings and then compare their length and which length will be largest print it is there fast method? ...

how to store data in ram in verilog

`// this is stimulus file module final_stim; reg [7:0] in,in_data; reg clk,rst_n,rd,wr,rd_data,wr_data; wire [7:0] out,out_wr; wire[7:0] d; integer i; reg kld,f; reg [127:0]key; wire [127:0] key_expand; wire [7:0]out_data; reg [7:0] k; //wire [7:0] k1,k2,k3,k4,k5,k6,k7,k8,k9,k10,k11,k12,k13,k14,k15,k16; wire [7:0] out_...

longest string in texts

I have following code in Java: import java.util.*; public class longest{ public static void main(String[] args){ int t=0;int m=0;int token1, token2; String words[]=new String[10]; String word[]=new String[10]; String common[]=new String[10]; String text="saqartvelo gabrwyindeba da gadzlierdeba aucileblad "; String text1="...