Hi

I've got some problems with the upper limit of an integral, which is a (known) function of a parameter.

When I try to evaluate it for a particular value of the parameter (M), Maple does nothing:

 

Hi I'am using a simple method to simulate solutions of ODE's with a precision that requires to do 80 million evaluations of my functions. Since this does thake a while, I was wondering if it would be possible to display some type op progress bar or to show on the screen how many steps have already been done. Is it possible to do this inside a proc environnement? Thanks in advance Pieter

I cannot find the Statistics Phi. For example when z is 0 Phi(z)=0.5 When z=0.50 Phi(z)=0.6915 I cannot find this anywhere in Maple. It's the Cumulative distribution function of the standard normal distribution Φ(z)

I am just curious as to how much money my fellow mathematicians would consider to sufficient to pursue a Martingale betting strategy? I would suspect that 20 000 ( assuming an initial betsize of 1) would be sufficient. Then you can handle 13 sequential losses.  However, it is a bit risky because let say you get 14 sequential losses then you will lose all 20 000 , he he

 

 

I copy the "lim" command in the Help,it seems doesn't work easily,what should I do make it work,

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Hello,

I'm simply trying to define a piecewise function but maple inserts some command I can't even find in the help.

f:-x->piecewise(x<-1,3x^2-5,x=-1,5,x>-1 and x<=4,3x+1,x>4);

and I get in blue

Hi

I'd want to labels the two axes of my desityplot with a greek letter (eta) and the calligraphy form of M (I mean the equivalent of the latex \mathcal{M}   )

I tried

P1:=densityplot(prova, a=0.16..0.25,b= 4..100,
grid=[25,25],   labels=["eta","M"], colourstyle=HUE,axes=box):

 

but in this way maple simply print eta (not the letter eta), If I leave the "" maple chose a like label (like the help page says).

Hi:

I'm a student majoring in Finance, and recentlly I am learning Maple.

But I found a question that I don't know how to deal with:

When learning Econometrics, and sometimes other subjects, we need to simplify a eq. like (X'*X)*b=X'*Y, where X,b,Y are Matrixes and we need to solve b.  And the kind  like that.

i'm working on a solution for the homicidal chauffeur algorithm. the data i have is two points: P (erson) and L (imo) both existing on the cartesian plane. although i think i'm doing it wrong (i'm not using diff equ's), i have a loop which runs over however many iterations it takes for the limo to come within 5 units of the person (most of the time it's taken ~100 iterations). the loop prints a bunch of data over each iteration which can easily be saved into a 4 x iterations array.

Hi there,

Here's an example maple file with my problem:

f := a*b;
B[1] := a;
B[2] := b;

when I try...

sum((diff(f, B[j]))^2, j = 1 .. 2);

I just get the answer of zero instead of b+a.

Any idea why this is happening and how I might be able to fix it?

Regards,

-Mike Busuttil
University of Windsor
Drake Research Group

I am trying to integrate an equation that has a cos(x), sin(x), cosh(x), sinh(x).  When I enter the equation in Maple and try to integrate the equation Maple just rewrites the equation without actually solving the equation.  I am not sure if I have to load a specific package to complete the integration.  Here is the equation:

H:= (cos(n*L)=cosh(n*L))/(sin(n*L)-sinh(n*L))

phi:=sin(n*x)-sinh(n*x)+H*(cos(n*x)-cosh(n*x)) 

when I write: int(phi(x), x=0..L)

How could I prove by Maple (11) that the following matrices are unitarily equivalent?

first row           cos(theta)    -sin(theta)

second row      sin(theta)      cos(theta)

and

first row       exp(i*theta)       0

second row         0           exp(-i*theta)

Hello Im trying to implement a method for numerical simulating a DE with Euler's method. I have got a second degree differential equations which i then transform to two first degrees which i give to my method. The code is given below. The method I'am using uses a list for which I ad an element after each step. This requires shifting al elements in the list one index lift or right. This works fine when there aren't many steps to do, but becomes very slow and uses a gigantic amount RAM in worksheet when i do 10.000 steps. Is there a way do to this more efficiently both in terms of speed and RAM ? Thanks Pieter

Hello!

sorry for my bad english...

I have a function, that depends og w^1. i do a lot of things with this function. in every following expr. i want to supress terms in w^n n > 2. can i do this?

 

thanks!

 

br

r

 

Hi all,

I am helping my friend on this issue.

We have some numerical computation which involves a lot of "log(g)*g" and we have to evaluate these for g on the interval [0, 1]. The reason that 0 is included is that because the singularity at 0 is removable.

 

In Maple: