What is Application: Definition and 996 Discussions

An application program (app or application for short) is a computer program designed to carry out a specific task other than one relating to the operation of the computer itself, typically to be used by end-users. Examples of an application include a word processor and a media player. The collective noun refers to all applications collectively. The other principal classifications of software are system software, relating to the operation of the computer, and utility software ("utilities").
Applications may be bundled with the computer and its system software or published separately and may be coded as proprietary, open-source, or projects. Apps built for mobile platforms are called mobile apps.

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  1. R

    Programs PhD application after a year and half out of Master's degree

    I graduated with a Master's degree about a year and a half ago and am considering applying to PhD programs in Canada. During this period, I have been working in a field completely unrelated to my previous education and the PhD programs that I intend to apply. I have mainly been teaching to kids...
  2. S

    Application of PDE on physicis

    I want to find some application of the laplace equation on semi-infinite plate on physics where the PDE is looke like $$u_{xx}+u_{yy}=f , for a<x<\infty , c<y<d$$ $$u(a,y)=g(y), u(x,c)=f_{1}(x), u(x,d)=f_{2}(x)$$ $$\lim_{x->\infty} f(x)=\lim_{x->\infty} f_{1}(x)=\lim_{x->\infty}...
  3. X

    Schools A- in Quantum 1 for GRAD school application.

    So I took quantum I using Griffith's and I only got an A- 3.7 out of 4. Will that look bad on my grad school application considering I'm competing with people who got A in quantum. I plan on getting into a PHD program and getting a Stipend. My overall GPA is like a 3.78.
  4. K

    MHB Intermediate Value Thm for Five-Point Formula

    I have a specific, for-learning-sake-only question on how the author of this link: http://www.math.ucla.edu/~yanovsky/Teaching/Math151A/hw5/Hw5_solutions.pdf gets past the details of the Intermediate Value Theorem on the following paragraph. If someone could fill in the details for me, it...
  5. MarkFL

    MHB Luo's question at Yahoo Answers regarding an application of the Law of Cosines

    Here is the question: I have posted a link there to this thread so the OP can view my work.
  6. A

    Application for exponential distribution

    The amount of time to finish a operation has an exponential distribution with mean 2 hours Find the probability that the time to finish the operation is greater than 2 hours. My thinking is to integrate the exponential probability function. After integrating it, I got -e^{-y/2} + 1 , 0 ≤ y...
  7. G

    Schools What degree should I select when applying for grad school: Masters or PhD?

    Hi everyone. Just for a bit of background info, I earned my B.S. in Physics in May. I'm applying for grad school (for next year), but I'm kinda stuck on part of the application. It's kind of silly, but I'm a worrier. There's a spot on the application for you to select what degree you are...
  8. M

    Is the boundary of ##S^{*}## the same as the boundary of ##D##?

    Homework Statement . Let ##F## be the vector field defined by ##F(x,y,z)=(-y,yz^2,x^2z)## and ##S \subset \mathbb R^3## the surface defined as ##S=\{x^2+y^2+z^2=4, z\geq 0\}##, oriented according to the exterior normal vector. Calculate: ##\iint_S (\nabla\times F).dS##. The attempt at a...
  9. MarkFL

    MHB Angelina Lopez's Calculus Questions on Differentiation

    Here are the questions: I have posted a link there to this topic so the OP can see my work.
  10. A

    Is that OK to use cover letter template for Ph.D. application

    Hi, I saw many templates for the cover letter of Ph.D. application. If I use them and do a little modification, is that OK or regard as a kind of plagiarization? Thank you very much in advance!
  11. M

    Application of Baire category theorem

    Homework Statement . Let ##(X,d)## be a complete metric space without isolated points and let ##D## be an enumerable dense subset of ##X##. Prove that ##D## is not a ##G_δ## (countable intersection of open sets). The attempt at a solution. Suppose that ##D## is a ##G_δ##. So ##D=\bigcap_{n...
  12. F

    Approximating Distance with a Second-Degree Taylor Polynomial

    Homework Statement A car is moving with speed 10m/s and acceleration 1 m/s^2 at the given instant. Using a second-degree Taylor polynomial, estimate how far the car moves in the next second. Homework Equations The Attempt at a Solution I don't get how you're supposed to apply...
  13. maverick_starstrider

    Danish Postdoc Asks for Diploma in Application What Does That Mean?

    Danish Postdoc Asks for "Diploma" in Application What Does That Mean? Hi all, I'm just trying to get a quick answer and I was hoping someone here might know. I'm looking to apply to a postdoc in denmark and it asks for the regular things (CV, cover letter, list of publications) but it...
  14. F

    Application on the limit definition of e

    Application on the limit definition of "e" Hi, I have known that: (i) (1+\frac{a}{n})^n=((1+\frac{a}{n})^\frac{n}{a})^a\to e^a (ii) (1-\frac{1}{n})^n=(\frac{n-1}{n})^n=(\frac{1}{\frac{n}{n-1}})^{(n-1)+1}=(\frac{1}{1+\frac{1}{n-1}})^{(n-1)}\cdot (\frac{1}{1+\frac{1}{n-1}}) \to \frac{1}{e}\cdot...
  15. J

    Application of LSZ reduction in NLO computations (external legs)

    Hello everyone, I have a question about virtual corrections of an external fermion line. According to the LSZ reduction formula and what some other people say, we neglect the self energies of external legs and multiply the wavefunction therefor just with a squareroot of the wave function...
  16. Y

    Common Application and recommenders

    Hello I have applied to the University of Rochester and they require every student to submit the common application. the common application requires me to invite a teacher and a consular and this is not possible in my case and I have discussed this matter with UR consulars and one of them...
  17. D

    Application of Integration: Finding the Area Bounded by a Hyperbola and Axes

    Homework Statement Show that the area of the plane bounded by the hyperbola (x)^1/2+(y)^1/2=(a)^1/2 and the axes of the coordinates is a^2/6 Homework Equations ∫yd x The Attempt at a Solution I just can't integrate the function (a)^1/2-(x)^1/2 considering the fact that there are x...
  18. P

    Interesting application of geometric algebra

    For those unaware, geometric algebra is a mathematical language that generalizes and simplifies a lot of the tools physicists work with (vectors, complex numbers, tensors, etc). I found a neat example in classical mechanics to illustrate its power. Simply, a charge in a constant magnetic field...
  19. B

    Visualization of detector data / other ideas for viz application

    Greetings friendly physics folks, I could use some advice and/or general suggestions regarding a data visualization project I'm looking to get started on. If this looks like too much reading, please skip to the TL;DR below. The basic project components are: (1) A GUI of some kind...
  20. Hunus

    Euclid's Elements - The Application of Areas

    In Heath's commentary on Euclid's Elements he stresses the importance of the application of areas (Book I Proposition 44) with, "The marvellous ingenuity of the solution is indeed worth of the 'godlike men of old'...". The proposition, "To a given straight line to apply, in a given...
  21. paulmdrdo1

    MHB Integration application: solids of revolution

    need some help here. 1. find the volume (by washer method) of the solid generated by revolving the region bounded by $y=3+x^2$ and the line $y=4$ about the x-axis. 2. write the integral that will give the volume of the solid generated by revolving the region bounded by $y=e^{2x}$, $x=-1$ and...
  22. MarkFL

    MHB Apply Binomial Theorem: Expand (x-2y)^3

    Here is the question: I have posted a link there to this topic so the OP can see my work.
  23. T

    Don't understand this application of the transform of an integral

    Homework Statement $$L\{ 1*{ t }^{ 3 }\}$$ Homework Equations $$L\{ \int _{ 0 }^{ t }{ f(\tau )d\tau } \} =\frac { L\{ f(t)\} }{ s }$$ The Attempt at a Solution $$L\{ 1*{ t }^{ 3 }\} \\ =L\{ \int _{ 0 }^{ t }{ { (t-\tau ) }^{ 3 }d\tau } \} \\ =\frac { L\{ { t }^{ 3 }\} }{ s } \\ =\frac...
  24. A

    Possible application of Genetic Algorithms

    Ok so I have a view ideas in mind for a project I was planning on doing involving genetic algorithms for my high school science fair class. I do have 3 mentors one a mathematician, a computer scientist who focuses on GAs, and a physicist who focuses on nano structures. here where I live, but...
  25. D

    Measuring 0.0001V Using 741 OP-AMP

    Homework Statement How will you measure a voltage of range 0.0001 volts using the 741 OP-AMP? Homework Equations The Attempt at a Solution This a viva question and i couldn't answer. I don't know how to begin. Should i use Sample and Hold circuit or something else?
  26. denjay

    Schools Are application deadlines university-wide?

    Simple question, are applications deadlines usually university-wide or does it vary from department to department (or college to college)? Or does the system depend on the whole university you're looking at? Thanks in advance.
  27. matqkks

    MHB How Are Prime Numbers Utilized in Everyday Life and Technology?

    Why are prime numbers important in real life? What practical use are prime numbers?
  28. Z

    Application of Gauss's Law to Charge Distribution

    Homework Statement A 10.0 g piece of Styrofoam carries a net charge of -0.700 \muC and is suspended in equilibrium above the center of a large, horizontal sheet of plastic that has a uniform charge density on its surface. What is the charge per unit area on the plastic sheet? Homework...
  29. M

    What is the proof of Zorn's lemma for extending linear transformations?

    1. Homework Statement . Let V be a vector space over the field R and S be a subspace of V. Now let f:S→R be a linear transformation. Prove that T can be extended to all the vector space V, i.e., there exists f':V→R such that f' restricted to S equals f. 3. The Attempt at a Solution . In...
  30. lonewolf219

    Schools Grad school application and sending more than they ask for

    I would like to apply to grad schools next Fall. If the school requires 3 recommendations, is it ever a good idea to include more? Also, what do you guys think about including a CV?
  31. I

    Application of orthogonality condition

    Homework Statement I have applied separation of variables to a transient radial heat equation problem. T is a function of r and t. I have reached the following step: Homework Equations T_2(t,r) = \sum_{m=1}^ \infty c_m...
  32. L

    Application of Cauchy's residue theorem

    Really need help for this one. Cheers! Homework Statement Question: calculate function z/(1-cos z) integrated in ac ounterclockwise circular contour given by |z-2pi|= 1 Homework Equations The Attempt at a Solution Clearly the pole in the given contour is 2pi. But the problem is: if it's a...
  33. MarkFL

    MHB Matt's Trig Problems - Applying De Moivre's Thm

    Here are the questions: I have posted a link there to this topic so the OP can see my work.
  34. Arkavo

    Central Force with application at circle

    Homework Statement An object of mass 'm' if revolving in a circular path of radius 'R', this is analogous to a gravitational motion except that the force is applied from a point on the circle itself, it is required to find the force law Homework Equations from the point of application...
  35. V

    Simple doubt in application of calculus

    I have done quite a few introductory physics problems where calculus is involved .When refreshing the concept of work done by variable force,I find myself unsure about an application of calculus.The underlying concept which is puzzling me is at the very root of calculus .The work done by the...
  36. D

    MHB Application of quadratic function in kinematics

    Basically I don't know anyone in real life that can help me with this, so I need help checking to see if my answers are correct :) Part B 1) A golfer hits a nice iron shot and the ball's height above the ground is given by h(t) = -16t^2 + 80t, where t is the time in seconds since the ball was...
  37. G

    Logic Resolution rule application

    Homework Statement Hi, there there is one question, which I find it to be solvable, but the answer is that it cannot be solved. Can someone explain me the answer given. I think there is a mistake on the underlined row, which leads to wrong answer. I am not sure, so if someone can help me I...
  38. S

    Fun base 10 application (Grocery Woes)

    If you are having difficulty figuring out the percentage of an item and don't have a calculator, you may utilize this trick (which i still don't know how it came to be in my mind). Let: ##a## be a fractional number (percentage) and ##b## a whole number. If you make ##a## be a whole number...
  39. marcus

    Remaining problems w LQG (and cosmology application)

    Tom gave an honest assessment just now in another thread of the real situation with LQG which in effect includes the several roads from there to cosmology (eg. Agullo, Alesci, Barrau, Engle, Vidotto, Wilson-Ewing and others). He made a very good point which is that the problems are not...
  40. Tclack

    Fluid Force (Real-Life application) Find my error

    So I'm in the Navy. I work on an aircraft carrier that just went into drydock. The drydock has a large trapezoid door keeping the water out on one side. Our captain wants to know how much force is being held back on that door. I found the dimensions of it and calculated it, but now I'm having...
  41. T

    Application of the Argument Principle

    I've been studying for a test and have stumbled upon another type of problem I'm not comfortable with yet. I need help applying the argument principle - the practice problems in my textbook all consider only polynomials in the first quadrant. In solving this type of problem I consider...
  42. T

    Application of Residue Theorem to Definite Integrals (Logarithm)

    I've been studying for a test and have been powering through the recommended problems and have stumbled upon a problem I just can't seem to figure out. $$\int_{0}^{\infty} \frac{logx}{1+x^{2}} dx$$ (Complex Variables, 2nd edition by Stephen D. Fisher; Exercise 17, Section 2.6; pg. 167)...
  43. E

    Engineering Calculator application for iPhone

    Check out Engineering Calculator for iPhone, iPad and iPod. A professional tool for native engineering calculations with units. It also includes reference tables for structural engineers with elements that can be inserted in calculations.
  44. J

    Backpressure and Hose Length in non-exhaust application.

    Hello, First, thank you for any assistance. I am a mechanic and my Super want's me to design a back-pressure system that will simulate field use of my machines in my shop. We spray several types of fireproofing thru hose's that vary in length between 50 and 500 feet. We use blower's that...
  45. J

    How Can I Accurately Simulate the Earth-Apophis Encounter on April 13, 2029?

    I would like to have a nice picture/simulation of the Earth - Apophis encounter on April 13th 2029. I found this applet http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=aPOPHIS;orb=1;cov=0;log=0;cad=0#orb but it seems to produce too great error for the time of encounter - the minimal distance much...
  46. S

    Current transducers application field

    Hello, guys. My question is related to my research work and I really really need help. I am a Phd student involved to the work of one R&D department. We are currently working with a technology which allows us to improve the performance of Hall effect based current sensors, in particular we...
  47. R

    Euler Angles/ Rigid Body application

    I apologize upfront, as I have no experience with math to begin with. However, I have a real life problem I am trying to figure out here at work and I would appreciate some help. Here is my situation: Homework Statement In a 3 dimensional plane, I have an artillery piece pointing at...
  48. F

    Quick doubt about linear application and its matrix

    Homework Statement Let ##f:\mathbb{R}^3\to \mathbb{R}^3## such that ##v_1=(1,0,1) , v_2=(0,1,-1), v_3=(0,0,2)## and ##f(v_1)=(3,1,0), f(v_2)=(-1,0,2), f(v_3)=(0,2,0)## find ##M^{E,E}_f## where ##E=(e_1,e_2,e_3)## is the canonical basis. The Attempt at a Solution i see ##v_1=e_1+e_3##...
  49. lonewolf219

    Creation Operators application

    Can creation operators be used to find a matrix representation in a larger dimension? Is that maybe how I could find the 3D representation for SU(2) ?
  50. C

    Application of Maxwell-Ampere's law

    Homework Statement Two equal and opposite charges (± q) start from positions ± y, respectively and move on the y-axis with constant velocity u, so that they approach symmetrically the axis origin. Using generalized Ampere's law find the magnetic field in any given point at the xz plane...
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