This problem arised in a math forum.

I would like to check wether the consecutive digits of a given positive integer (n) are in the first 100000 digits of Pi.

For example the given integer (n) = 1592653 and this is in 3,1415926535897.... so the result is true.

I also would like to use this pattern matching for checking the type of a variable in a procedure:

myproc:=proc(n::mytype)
...end proc;

The procedure accepts n if n fullfils the condition above.

Hi, I have a trouble in handling MathML in worksheet published by MapleNet. A simple worksheet published on the following page works fine. http://mapleoracles.maplesoft.com:8080/maplenet/primes/worksheet/256_int_math.mw However, same worksheet published on my own MapleNet server does not work nicely. http://thomas.phys.cs.is.nagoya-u.ac.jp/maplenet/App/int_math.mw

I have found this problem somewhere in a math forum: somebody wanted to simplify this expression ( I write it in maple syntax:, this was not a maple forum):

a:=(1253*sqrt(2)-963*sqrt(3))^(1/3)+(26209+10500*sqrt(6))^(1/4);

They tried with the simplify command of maple, but it didn't work, and they tried with Fullsimplify command of the other famous math program , and it worked. ( I haven't tried it.) The conclusion was that Maple couldn't do this job.

Actually Maple can do this job with radnormal:

radnormal(a);

14*2^(1/2)

I am having problems using implicitplot.  I run this code and it worked and today I tried it again and it gives me the following:

with(plots,implicitplot);

implicitplot(0=int(erf(  (T-e*t)/sqrt(2)  )*t^2*exp(-t/2),t=0..infinity),e=0..1,T=0..10);

Error, (in plots/implicitplot) invalid input: the following extra unknowns were found in the input expression: {t}

The weird thing is that this worked before (took about 10min though) and now it isn't.  Any suggestions?

Thanks

 

I want to write some stats questions on forecasting. I would like to have a list which is a time series, and use Moving Average to derive forecasts, then calculate my errors, etc. I can do it all in Maple, but I don't know how to create a list in Maple TA. For instance, how do I create A in Maple TA's algorithm, where A is defined by:

A:= [seq(round(RandomTools[Generate](distribution(Normal(40,5)),1)), i=1..20)];

This is just a  list of some "sales figures" distributed approximately normally.

Thanks in advance

Stephen

 

 

Verify this by showing how to deduce Σ

Can someone please help me on this question ?

 

 

 

Verify this by showing how to deduce Σ

I am trying to plot q2:= (x) -> x*exp(x^2)*(1-erf(x)); for 0 <><>plot(q2(x),x=.1..10); then the resulting plot is incorrect. In reading other posts I get the impression that one needs to somehow prevent the plot routine(s?) from following their default behavior of refusing to compute with the

What is the big oh of the binomial coefficient

  n

(   )

  k

Hi, I'm hoping someone in here will be able to help me.

I've made two files in which I need to find a symbolic expression for the difference between two mathematical models of a mass, damper, spring system:

Hi,

            I have a question regarding  Chebyshev interpolation of data. How can I interpolate the following data by Chebyshev interpolation using maple?

X:=[16,45,85,120];
Y:=[4,7.2,1.6,0.5];

Thank you

 

I want to have a procedure define a function... If I do: >with(stats); >does_not_work:= proc(t) local v,d0,d1,x,y; > v = rhs(fit[leastsquare[[x,y], y=d0+d1*x]](t)); >end proc; then > does_not_work([[0,1,2],[3,4,5]]); results in "v = 3 + x" as expected, but if I try to have the procedure define a function d as in >does_not_work:= proc(t) local v,d0,d1,x,y; global d; > v = rhs(fit[leastsquare[[x,y], y=d0+d1*x]](t)); > d:= (x) -> v; >end proc; then > does_not_work([[0,1,2],[3,4,5]]); > d(1); does not result in 4, which should be the result of applying

Okay, I'm just really starting to get into Maple again, but I'm having a little trouble getting a package to work.

I'm trying to take a look and review the precalculus package from the application center but it doesn't seem to work. 

It's from maple 7.  The new version doesn't seem to follow through on the commands made.

Hi there :) As i am new here first a short Hello: Hello, my Name is Gernot, and i am Physics Student of the 6th Semester. I am a beginner in Maple, and am prety new to Calculating on the Computer in General. At the moment i need Maple primary for calculations and analyzing Measuring Data from the Exoeriments in my Physics practica. And I have some Questions on that, and hope you can Help me a bit :) As i don't want to do a Monster Posting here, i will make more Topics on ym Questions, although they all stick together ;). So my first question is: I am Having a Vector

I'm trying to plot the solution of the following differential equation:

theta * y''(t) - y'(t) = 0  with boundary conditions  y(-1)=alpha  and  y(1)=beta. Theta is supposed to be very small, say 0.01, and for starters I put  alpha=1  and  beta=-1. But Maple does not compute. I use the following source code:

> singularperturbation:={0.01*diff(y(t),[t$2]) - y(t)*diff(y(t),t) = 0, y(-1)=1,y(1)=-1};

> differentialsolve:=(singularperturbation,y(t),type=numeric,method=bvp[midrich],abserr=1e-2);