MaplePrimes - Questions and Posts tagged with constants

MRB constant N part 3

Marvin Ray Burns — Mon, 21 May 2012 01:30:50 Z

over defined problem

farazhedayati — Wed, 16 May 2012 20:02:29 Z

Have to solve and ODE in the domain of [-infnity +infinity ] via specific analytical method but due to some restrictions it could not be solved. In order to solve it, I have separated the domain into [-infinity 0 ] and [0 infinity]. So, I have to add some boundary values at x=0 to the problem. Assuming the solution of the mentioned ODE in [-infinity 0 ] is g(x) and in [0 infinity] is f(x), I added the boundary values of f(0)=g(0)=a and f ' (0)=b and obtained f(x...

MRB Constant Y

Marvin Ray Burns — Sat, 28 Apr 2012 21:16:41 Z

MRB Constant X

Marvin Ray Burns — Sat, 21 Apr 2012 18:22:18 Z

MRB constant T

Marvin Ray Burns — Fri, 13 Jan 2012 20:45:19 Z

Let c=MRB constant -1/2

MRB constant S part 2

Marvin Ray Burns — Sun, 08 Jan 2012 03:45:16 Z

Define s as the following function involving a divergent series.

(1)

The upper limit point of the partial sums, of s is very slowly convergent.

(2)

(3)

(4)

Let mrb be tthe upper limit point of s as x goes to infinity.

(5)

Define f as the following function involving the divergnet series

(6)

Let c be the value for a in the neighborhood of 26 such that f(a)=mrb.

(7)

The average of the upper and lower limit points of the partil sums of f converges much faster than the upper limit point of the partial sums of s.

(8)

(9)

(10)

Download Jan72012.mw

MRB constant S

Marvin Ray Burns — Mon, 02 Jan 2012 16:05:36 Z

Download jan022012.mw

MRB constant R

Marvin Ray Burns — Sun, 01 Jan 2012 19:42:52 Z

MRB constant P

Marvin Ray Burns — Sun, 04 Sep 2011 22:43:46 Z

The MRB constant =

Concerning the following divergent and convergent series, we see that

Maple 15.02 -- when?

J F Ogilvie — Tue, 16 Aug 2011 12:30:00 Z

When can we expect Maple 15.02 to appear, to correct that major error of matrix multiplication and the plotting problem with the classic interface in particular?

Now a new set of fundamental physical constants has been released, as of 2011 June, making the values embedded in Maple's package Scientific Constants from the preceding millennium a further step obsolescent. I understand, however, that the values of mathematical constants pi and exp(1) are still current.

fourier coefficients

AliKhan — Thu, 11 Aug 2011 11:23:56 Z

HI,

I am trying to solve for fourier coefficients but can't figure out the error in the code. Need help to debug the code.

Also if possible how to find the harmonics in the curve defined in the code.

following is the website from where i got this code

http://www.mapleprimes.com/questions/121551-Fourier-Serie-And-Discrete-Fourier-Transform

fouriercoefficient_h.mw

Maple 15 Sets a World Record for the Computation of a Constant You’ve Probably Never Heard Of

Dave Hare — Wed, 29 Jun 2011 18:26:39 Z

The problem

Back in 1996 I was working for the Symbolic Computation Group at the University of Waterloo, developing algorithms and code...

Convergents Constants

Marvin Ray Burns — Mon, 30 May 2011 04:30:11 Z

Here is the progress made in the investigation of what I call the convergents constants:
https://oeis.org/wiki/Table_of_convergents_constants

I wonder if anyone would be interested in adding anything to it. I would like to see the convergents constants studied some in Maple to compare with my Mathematica results; my investigation is in dire need of some proof other than my...

Solving ODE system

Macrohard — Wed, 30 Mar 2011 08:58:53 Z

Hello!

I'm trying to solve numerically an ODE system with piecewise. And this piecewise is very important for this task.

This system describes behavior of a pulley with friction. There are some constants: m, c, g, mu and J. Values of this constants are not important.

> sys := m*a(t) = piecewise(a(t) < a0, F0*time, a(t) >= a0, 0), v(t) = diff(x(t), t), a(t) = diff(v(t), t);
> m := 5; F0 := 10; a0 := 5;
> initialconditions := x(0) = 0, v(0) = 0;

Extract the argument of a trigonometric function

DarthVid — Mon, 14 Feb 2011 20:56:21 Z

Regards,

I have a very large equation which has an arctan(x,y). I need to be able to extract the arguments x,y and assign them in some variables.

I have tried the solution given here.

Unfortunately, that solution only works for constants, not equations.

For example, if I use the proc given in there with arctan(10,11) it works. But if I use something like arctan...