Mathematics desk | ||
---|---|---|
< September 16 | << Aug | September | Oct >> | September 18 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
As the subject implies, i need to find a formula to place items an equal distance apart on the circumference of a circle. Specifically i need 24 equidistant locations. I dont know quite yet how i will define the circle, probably with parametrics? But ive looked on google for an answer to this and there doesnt seem to be any. Please help?
Thanks! 137.81.115.58 ( talk) 01:26, 17 September 2009 (UTC)
See Root of unity. Bo Jacoby ( talk) 08:58, 17 September 2009 (UTC).
sir/mam....which extra book i adopt ?? i am the student of commerce stream..i choose maths because i want to become good C.A.
you are good to go rambharose..best of luck
Hello
Hope someone can answer this as I can't find it in the system. I understand how roman numerals work but get stuck at large numbers, ie one million is M with a bar, but how do you write 2 million or 10 million etc ?
-- Bruceglasgow ( talk) 18:42, 17 September 2009 (UTC)
A question arises from another persons question about oscillations of things travelling through a spherical body exerting and inverse square force law Wikipedia:Reference_desk/Science#Gravity_at_the_center_of_a_body.
My question begins: If a spherical centre part is removed then within this part the field force is zero. (as per Shell theorem), assuming a body is dropped into the whole hollow sphere (assumming a negligable cylindrical hole for it to travel in or whatever) - then it seems to me that the body will accelerate towards the centre, then when it reaches the empty part no field is experienced and the body will move at constant velocity, until it exits the spherical hole at which point the deacceleration occurs, and so on. Thus it oscillates.. but with a part at which the acceleration is zero...
So the equation of motion (eg acceleration vs time) I would expect to be expressable as a fourier series (ie a series of powers of sines or similar).. Since the function is periodic. But at the times at which the particle is inside the spherical void the acceleration is 0, as are the derivatives of the accelerations.. This seems to contradict the taylor-maclaurin type theorems (ie that a function at any point can be constructed from the function at a given time and all it's derivatives.
My questions are:
The taylor series for g(z) defines the fourier series for f(x) = g(eix) . Bo Jacoby ( talk) 10:04, 18 September 2009 (UTC).
Mathematics desk | ||
---|---|---|
< September 16 | << Aug | September | Oct >> | September 18 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
As the subject implies, i need to find a formula to place items an equal distance apart on the circumference of a circle. Specifically i need 24 equidistant locations. I dont know quite yet how i will define the circle, probably with parametrics? But ive looked on google for an answer to this and there doesnt seem to be any. Please help?
Thanks! 137.81.115.58 ( talk) 01:26, 17 September 2009 (UTC)
See Root of unity. Bo Jacoby ( talk) 08:58, 17 September 2009 (UTC).
sir/mam....which extra book i adopt ?? i am the student of commerce stream..i choose maths because i want to become good C.A.
you are good to go rambharose..best of luck
Hello
Hope someone can answer this as I can't find it in the system. I understand how roman numerals work but get stuck at large numbers, ie one million is M with a bar, but how do you write 2 million or 10 million etc ?
-- Bruceglasgow ( talk) 18:42, 17 September 2009 (UTC)
A question arises from another persons question about oscillations of things travelling through a spherical body exerting and inverse square force law Wikipedia:Reference_desk/Science#Gravity_at_the_center_of_a_body.
My question begins: If a spherical centre part is removed then within this part the field force is zero. (as per Shell theorem), assuming a body is dropped into the whole hollow sphere (assumming a negligable cylindrical hole for it to travel in or whatever) - then it seems to me that the body will accelerate towards the centre, then when it reaches the empty part no field is experienced and the body will move at constant velocity, until it exits the spherical hole at which point the deacceleration occurs, and so on. Thus it oscillates.. but with a part at which the acceleration is zero...
So the equation of motion (eg acceleration vs time) I would expect to be expressable as a fourier series (ie a series of powers of sines or similar).. Since the function is periodic. But at the times at which the particle is inside the spherical void the acceleration is 0, as are the derivatives of the accelerations.. This seems to contradict the taylor-maclaurin type theorems (ie that a function at any point can be constructed from the function at a given time and all it's derivatives.
My questions are:
The taylor series for g(z) defines the fourier series for f(x) = g(eix) . Bo Jacoby ( talk) 10:04, 18 September 2009 (UTC).