List Definition and 494 Threads

Homework Statement Create a class named digit, which stores a node holding a digit. Include appropriate data members and member functions to do the following: (a) Read a long number (datatype is double) from user and store each digit of the long number as a node value. For example, if the...

Nowadays I read a lot about people's bucket list. For members not familiar with the concept, a bucket list are a list of things they really want to do before they die. For example, some people might really want to try parachute jumping or riding an elephant. But when it comes to us scientists...

Back again. This time I'm looking to build a small catalog of Feynman diagrams for my own use (and when I'm done to put it on the Internet in PDF format). I need your help to get a list of URLs together that I can download the required PDF's off the internet, bring them into Illustrator and have...

Hello. It's given the following type (sorry for the mix italian-english): struct El{ int info; struct El* next; }; typedef struct El ElementoLista; typedef ElementoLista* ListaDiInteri; And I have to remove all elements of value n; I did this: void remLista(ListaDiInteri *l, int n)...

Hi, I am using NetBeans 8.1. I want to add elements in a list Box on a Button press. My code would read text from textField & then insert into list box: private void button1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your...

Why doesn't pdg baryons list show the quark compositions and electrical charges? For example, there is only one roper resonance entry, but there are two roper resonances with different quark compositions (although they have the same mass), why not list all the variations?

I am having trouble with this program with negativeCntr . Any one explain what i am doing wrong and guide me please. [CODE]#include <iostream> #include <cstdlib> using namespace std; class IntNode { public: IntNode(int dataInit = 0, IntNode* nextLoc = 0); void InsertAfter(IntNode*...

Can someone please explain the deconstruction and elements of this set. I understand it to be.. F3[X] = {f(x)=a(0)+a(1)X+...+a(n)X^n : a(i) in F3] <x^2+1> = {g(x)(x^2+1): g(x) in F3[x]] So an element in the quotient should be something like f(x)+<x^2+1> Yet, research shows there are nine...

Max: 3x + 5y s.t. x + 2y ≤ 5 x ≤ 3 y ≤ 2 x,y ≥0 By the simplex method, the profit is $14. Using sensitivity analysis I changed the RHS of the 1st constraint and keeping everything else constant, I get the best profit value of $19 at RHS of 7. What other methods can I use such as the...

http://carlofest.wix.com/carlofest#!speakers/srtqn Try to estimate the range of ideas represented by this collection of speakers (all but two are already confirmed for the 22-27 May conference). It covers not only Quantum Gravity and Cosmology but also Noncommutative Geometry, Foundations of...

I have a code that loops through and does some computation on 5 random values from my lists of data (2187 rows long). for i = 1:3 randomdata = round(rand(5,1).*2187); xval = x(randomdata) yval = y(randomdata) numerator = length(xval).*nansum(xval.*yval) -...

* FAQ entries are slowly being migrated to the Insights blog https://www.physicsforums.com/insights/category/faqs/ Building a Definition for Heat Why Don’t Electrons Crash into the Nucleus in Atoms? How Does an Airplane Wing Work: a Primer on Lift Energy Gained by Charge in an Electrostatic...

Hello everyone, sorry to bother you. I was just looking around for a list of all the Quantum phenomenon effects and couldn't find one quickly. I know two of them such as tunnelling and locking but the rest of the ones I've heard of I can't remember. Also there may be ones I don't know about...

I refer to the list here: https://math.berkeley.edu/~kirby/ entitled "Problems in Low-Dimensional Topology" Question says it all. I am giving a graduate level presentation to a group that includes some knot theorists. (I believe the collective term for knot theorists is a "tangle"...

Hi, I'm embarking on a mission to self-study math, and would like some recommendations on any missing books or ones that should be replaced in my repertoire. The goal is to build a strong mathematical foundation. My naive idea of what that means is something like an undergraduate math major, so...

Could you help to add more items into this incomplete list of life-friendly "coincidences" in QM: 1. Having at least 3 generations is important for life. With 2 or less, CP violation is "absorbed", and without CP violation there is no matter-antimatter disbalance. 2. Neuron is "almost" stable...

Homework Statement The following program should create singly circular linked list which has n arbitrary stored positive integer numbers. Then, create BST which has all primes from the list, and store them in text file in descending order. Homework Equations Linked list Binary search tree File...

Not long ago, a member posted a problem in the Homework section, concerned with determining which of the five-digit permutations of 4, 5, 6, 8, and 9 were divisible by 8. I first thought about writing some C code to figure this out, but when I discovered that Python has some functions that...

Mod note: Added code tags 1. Homework Statement in my main I am getting infinite loop iterating over a link list Homework EquationsThe Attempt at a Solution /* * graph.c * * Created on: Oct 8, 2015 * Author: danif */ #include <stdio.h> #include "IntList.h" int main(void) { typedef...

Is there any chart/graph/website online or in a ebook that has a clear concise list of special matrices used in physics? I'm just getting into an intro to quantum mechanics class and we are going over all types of matrices, Identity, hermitian, diagonal, transpose, unitary, and so on. I want...

https://www.washingtonpost.com/national/health-science/us-universities-still-at-top-in-scientific-innovation-but-asia-is-catching-up/2015/09/21/cc09a2d8-5d56-11e5-b38e-06883aacba64_story.html The United States is still occupies the top spots for scientific innovation in universities, but Asia...

The problem https://i.gyazo.com/66f03e2caa6ee751adc02e3535287e74.png Find the next element in the list List 1: 2, 4, 8, 16, 32 List 2: 1, 4, 9, 16, 25 List 3: 1, 4, 7, 10 List 4: J, F, M, A, M, J List 5: Symbols, see photo My approaches List 1: This one seemed obvious. Any given element is...

Homework Statement Can you create a list of which functions increase towards infinity the fastest for limit solving? Homework EquationsThe Attempt at a Solution I'm trying to make a list from least speed, to fastest speed, in approaching infinity. As in, if you have a limit, and it has...

CAn anyone explain how this program in Fortran on linked lists is supposed to work. Actually it does work but I can not for the life of me follow the logic behind it or what is going on. I did some Fortran programming in F77 but now with this new 'pointer' type it is about impossible to...

Why are "Arrivals" displayed, along side the more important "Departures," within the secure areas in airport terminals? (By that I mean in the public areas that you need a boarding pass to get to, and areas that are within the secure side of the security station.) [Edit: I understand the need...

Hi, Could someone please tell me at which point in learning maths do you begin to write and solve proofs? I have taken high school maths so far except for discrete math. If there is a list of different maths that lead up to proof writing, please let me know of them and in which order I...

Homework Statement So I'm currently modifying an example Symbolic Regression program that uses genetic programming, a type of evolutionary algorithm. I'm using the python deap library. Not sure if anyone on here is familiar with it, but I think that the error is more general to a misuse of...

This question is for the scientists and academics out there. What books on the scientific disciplines do you wish Science Fiction writers would read? I can think of books written by people like Brian Epstein and Michio Kaku. Another source would be textbooks. Anyone out there have any thoughts...

I notice there are some functions in Mathematica in which you can't supply directly, an array of arguments but rather must give it a list. For example, GCD and LCM. I can use for example, GCD[2,3,8] and it returns 1. However if I code: GCD[{2,3,8}], the function call fails. I know of one way...

This seems like a fairly common technique but I'm fairly new to programming and don't quite know what the proper terms to find such an algorithm would be. In my case, it seems like a list of all possible values would approach almost a billion, and I feel like there's a quicker approach to...

I need to write a code that finds element x in a skip list. I need to implement that in O(logk) expected running time, where k is the location of x at the list (i.e., there are k-1 elements before x in the list). I know how to do it at o(logn), but not o(logk). can you show me the way? I need...

Hi there, I've been reading a textbook on Physics as applied to nuclear medicine, in particular focusing on how photons interact with matter. The textbook states (without reference) that "there are nine possible interactions between photons and matter, of which only four are of significance to...

Homework Statement I am implementing a singly linked list but when I am in my main method, to add into my singly linked list, nothing happens.Homework Equations [/B] None The Attempt at a Solution I am trying to implement a singly linked list. My singly linked list, where I implemented a...

All of these PF original Math FAQs can be found in the STEM Learning Materials forum PF Insights Blog https://www.physicsforums.com/insights/postindex/ 48÷2(9+3) and similar The number zero What Are Eigenvectors and Eigenvalues? Cardinal and ordinal numbers...

* FAQ entries are slowly being migrated to the Insights blog https://www.physicsforums.com/insights/category/faqs/ Do photons have mass? Will All Matter Be Converted to Photons? Does gravity gravitate? A Geometrical View of Time Dilation and the Twin Paradox Can I send a signal faster than...

PF Insights Blog https://www.physicsforums.com/insights/postindex/ Was the early universe in a disordered state? Why is the radius of the observable universe in light-years greater than its age? Where did the Big Bang happen? Would that be the center of the universe? What is the total...

I would like a list of ways highly accurate to solve the equation: E - e * sin(E) = M I can solve this with the Newton Method: M = 2*pi/3 e = 0.002 E = pi d = 0.01 Do While SQRT(d^2) > 0.000001 d= (E - e * sin(E) - M) / (1 - e * cos(E)) E = E + d Loop This is not very accurate. Is...

Most probably, there was already a thread about this before, but I didn't find any with the search engine. Please, believe me, I tried a lot of words and found nothing like I'm going to ask now. I'm not a physicist...in fact, I'm a Political Sciences student with a great passion for Philosophy...

This is by no means a complete list. It is constantly revised. This initial list is compliments of @ZapperZ. Please contact a mentor if you'd like a journal added. Links to each journal will be added in the future. Nature Science Physical Review Letters (PRL) Review of Modern Physics Physical...

Hello everyone... I've been trying to make a list about moderator materials used in nuclear reactors. So far I've found some but still wondering if there exists more than I learned and also wondering if they are correct. Please see the list below and feel free to correct my mistakes or to add...

There are numerous places I'd like to see in the next few years before I physically can not do. Alaska is one place, particularly Denali. An Alaskan Adventure — Ice Road Trucking Under the Northern Lights...

I know that steel and titanium have fatigue limits. Just to clarify, metals or alloys with fatigue limits are metals that - as long as they experience pressures that lower than the limits - can last "indefinitely". Aluminum, for example, does NOT have a fatigue limit. No matter how small the...

I know that steel and titanium have fatigue limits. Just to clarify, metals or alloys with fatigue limits are metals that - as long as they experience pressures that lower than the limits - can last "indefinitely". Aluminum, for example, does NOT have a fatigue limit. No matter how small the...

Hello! (Wave) Consider a singly-linked list L each element of which is a struct with two fields, an integer num and a pointer next to the next element of the list. Describe an algorithm that gets as argument a pointer to the first element of the list L and that creates a new list L' that...

Given a list (a,b,c,d,e,f) What method can I use to quickly find all 15 pairings of two letters. I can do it without using a specific decision procedure throughout but sometimes combinations get repeated and its hard to check quickly which ones have already been. Essentially I would like an...

[FONT=Times New Roman]This idea came to me while jotting down some notes to get a handle on my villains. There is a thread here dedicated to what some of our favorite science fiction novels are. If I needed to study some form of physics, astronomy, or cosmology I could put out a call and you...

Hello all. I was wondering if anyone has any external sources for a list of math textbooks, particularly by the same author, going from arithmetic all the way to differential calculus (or some other harder form of mathematics). The reason I want it to be the same author, is so I can be sure that...

Homework Statement The Attempt at a Solution My answer was C but the correct answer is A. My reasoning is that they are all bonded to chlorine, so the further away the element is from chlorine on the periodic table, the more ionic the compound is and the higher the melting point is. The...

When I use the code directly below, it works (indicated by the "Out:..."). tmp2 = Flatten[{33, {1, 2 + j, 6}, 55}];(*Out:{33,1,2+j,6,55} *) tmp2[[4]]; (*Out: 6 *) But when I use it inside a loop, it acts like the tmp2 list is not the correct size: For[j = 0, j <= 5, j++, tmp2 = Flatten[{33...

Hey guys, I've been asking around trying to see what schools on my list are 'reach', 'safety', or 'matches' for my profile. I was wondering if you guys could take a look and let me know if there's something that's too crazy or well within reach (or if I should just wait 'till next semester based...