Recent content by AKJ1

Oh youre right! I keep forgetting we look at the absolute value of the ratio. The sum does not exist in the opposite case, therefore any such combination where the ratio is greater than 1 is a domain violation and should be excluded from the sketch?

Homework Statement Suppose we have f(x,y) = ∑(x/y)^n , n goes from 0 to infinity. What is the domain on the xy plane? Sketch it. 3. Attempt I was thinking to look at the scenario if x/y is less than 1, or bigger than 1. If the ratio is less than 1, then I can use an idea from geometric series...

Fantastic. Thank you for the response and additional discussion links.

Homework Statement [/B] Hi all, these were two even numbered exercises in my C++ textbook. I am self teaching the language so I am trying to get some of the basics down. 1. Would the following snippet of code best be described as an example of Polymorphism or Inheritance? class Shape {...

Thank you for your response! Two questions... 1. Can I think of Earth as a big reservoir of charge? 2. Can you elaborate a little on what you mean by earthing is done from the protection point of view?

Homework Statement I have seen Earth and ground used interchangeably. However, there appears to be some distinction with regards to reference point ground and Earth ground. My textbook used an example of a loaded voltage divider and examined how the voltage across certain resistors can be...

1. Homework Statement In the third constructor in the second snippet of code, I keep getting a compiler warning that hours, milli, seconds, and hours is not initialized in the constructor. Should I just set them equal to zero within that constructor? I have never worked with multiple...

Hmm, how would I do this? Should I make a string variable and getline(cin,string variable) ? I am not as familiar with getline, so if what I said makes no sense then I apologize :)

Homework Statement I am writing a program that will calculate the average and standard deviation given data by the user. The data is entered into a vector. The size of the vector is also determined by the user. When the user enters the size of their vector, they need to enter a positive...

Will give it a go, thanks! :)

http://www.stewartcalculus.com/data/ESSENTIAL CALCULUS Early Transcendentals/upfiles/ess-reviewofconics.pdf Thats about the extent of my knowledge of conics. Which is probably sufficient, but I am having a hard time making the connection. sqrt( (x-a)^2 + (y-b)^2 ) = Q - sqrt( (x-c)^2 + (y-d)^2...

Homework Statement Problem that was gone over in class, but I missed part of the lecture Describe all points (x,y) satisfying | p - s | + | p - t | = Q where, Vector p = <x,y> Vector s = <a,b> Vector t = <c,d> a,b,c,d and Q are constants and Q is greater than | s - t | The Attempt at a...

Homework Statement Even conceptual problem in the text: Consider a standard RLC circuit driven by an AC source in which the elements are in parallel. Construct a phasor diagram and develop an expression for the phase angle θ. Now remove the resistor from the circuit, can you still develop an...

Homework Statement A rather large non conducting slab of area A and thickness d has a charge density given by ρ = αx2. The origin is through the center of the slab. That is, it bisects the slab into two equal volumes of d/2 thickness and with an area A, with -L/2 to the left of x=0 and L/2 to...

Good point :smile: