Recent content by chaoseverlasting

Hi, While solving a system of linear equations, there are three possible cases - unique / infinite / no solutions - to the system. One geometric interpretation is when one looks at a set of planes intersecting at one / many / no points respectively, for each of the above cases. While going...

Hi, I've identified the bug: the onkey() function isn't passing arguments through to the code. I.e. wn.onkey(change_size(t,1) ,"+") #has to be altered to change_size(change_size,"+") How can I pass these arguments through the keyboard inputs?[/code]

Hi, I'm trying to take keyboard inputs to make changes to a turtle from the 'Turtle' graphics in Python. I'm not able to register keyboard inputs for the code I've written. I've tested out the examples that had been provided online, and they seem to work fine. I'm not quite sure where I'm...

For a regular n sided polygon of side length a, and radius 'r', I am getting the following relationship: a=2rsin\frac{\pi}{n} This corresponds with my earlier derivation, however I'm still not generating the correct pattern. Please help! If the radius, r is 100, the side a should be approx...

Homework Statement I'm trying to create a clock face in Python and can't quite figure out where I'm going wrong. Statement: For a clock of radius 100 units, what will be the distance between two adjacent numbers? If a turtle walks along the path joining two adjacent numbers, by what angle...

So, the math itself in the links is alright. I'd like to develop the equations themselves. I was getting stuck with the velocity vs path vector stuff. What route of analysis should I take? Also, how did you generate the graphs in excel?

I think the world is an interesting place right now. Perhaps another way to look at the situation is not to assess capabilities, but to perhaps assess their psychology. I understand that having the latest and greatest piece of tech can increase the effectiveness of a country's response, but...

Im trying to colour excel cells using (r,g,b) values. I understand its possible to do this through macros or through custom functions. Any suggestions / solutions?

Yes! Its the math of it that I'm trying to figure out. The thought process escapes me. I think I'll just have to break it down a lot more. Any approaches you'd suggest?

So each of the points moves along the edge of the triangle towards the next point. This, point a moves towards point b which moves towards point c. As they always move towards the next point with the same speed, they always form the vertices of an ever smaller equilateral triangle and converge...

Honestly, it's great being back. I decided to give the old books another shot. It's surprising how much I remember and how much has just slipped out of reach. It's trying, but fun figuring all these old things out. It's like meeting old friends again, exactly like being back on PF!

Sorry, they all move with constant and same speed. There is no force / acceleration at play.

I've dropped in on PF from time to time, but haven't had anything to post really. Have been working in a fairly involved job in consumer goods marketing in India, and doing well in general. However, over the last year or so, I've felt a bit disconnected. I used to love spending time doing...

Homework Statement There are three objects at the Vertices of an equilateral triangle that start movin towards each other at the same time with a speed v. Describe the path of the objects and the time taken for them to meet. Homework Equations V1=v3 - v2 Where all velocities are in...

I'm glad to be back! And I have a new appreciation for PF now that even the (once) simple problems in physics and mathematics leave me confounded :woot::-p I'll be hitting the homework forums in full swing! Who knows, I might even find some of my old posts useful! It's great to see everyone...