How can I use 'evalr' and 'shake' for functions (in a relative or absolute sense)?

What I see in the help is the result for disturbing the input to a function (by decimal digits).

But I want ranges for the output, if the function itself is disturbed, not only the input
(giving resulting error ranges, even for exact input).

Any idea?

Hello,

I am trying to import some data into Maple from an Excel sheet that contains three columns.

Column 1 is simply an index number for the measurement running from 1 to 3185.

Column 2 is the time of the measurement ( e.g 10:23:44 ) with Excel formatting as "time".

Column 3 is the measured CO2 concentration logged at the psecific time.

My problem is that when I import the data into Maple using the ExcelTools,Import or simply the Import...

Hello Maple wizards,

I am working with thousands of fairly large (at least 11K nonzero entries) strictly lower triangular Arrays containing positive and negative floating point numbers, including float(1,infinity). The Arrays are the same size and each one can be processed independently, so I hope to avoid a space explosion by having each Array overwrite the previous one -- lhs(entry) and all that. I do see a steady leakage not recovered by gc, but that's not tonight's question.

Hi group,

I am stumped and would appreciate some advice.  I'm trying to use the piecewise function in the context of dsolve,numeric.  As a simple example:

piwz := piecewise(S(t) < 40000, 0, S(t) >= 40000, 1);

eq1 := diff(S(t), t) = k1*S(t)-k2*S(t)*piwz

In this example, I want the value of piwz in eq1 to be a function of S(t).  However, when I use dsolve, numeric to solve this, and to plot using odeplot in the usual manner,...

I'm running a for loop to find a numerical solution to a linear system of equations.

x1:=1

x2:=2

x3:=3

for i from 0 to 10 by 1 do

y1:= f(x2,x3);     <-------------- these are functions of variables solved using the initial approximations above.

y2:= f(x1,x3);

y3:= f(x1,x2);

x1:=y1;    <-------------- Reassignment statements

x2:=y2;

x3:=y3;

end do;

Hello,

I want to solve the differential equation and put the solution in a list to be able to animate the pendulum.

tipe6 := proc (longueur, thetaInitial, rayonBoule, nombrePoints)

local eq, sol, valeurstheta, x, y, plotseq;

eq := ((1/2)*longueur^2+(1/5)*rayonBoule^2)*(diff(theta(t), t))^2+g*l*(cos(theta(t))-cos(thetaInitial)) = 0;

sol := dsolve({theta(0) = thetaInitial, (D(theta))(0) = 0, eq}, theta(t), numeric);

hi i want to know how to use maple to solve rational differece equations by using differential transform method DTM for example:=

{y(x+1)=(x+2)/(x-1), y(0)=1}

Hello everyone,

Groebner[NormalForm] fails to produce quotients for the members of Ideal when MonomialOrder is constructed with Ore_algebra.

e.g. Groebner[NormalForm](F[1], G, T, 'Q');
results in "Error, (in Groebner:-NormalForm) numeric exception: division by zero"
if F[1] in <G> and T is MonomialOrder

But it works if we dont ask for quotients or use ShortMonomialOrder

Any ideas if it is intended behaviour or a bug?

Steps to reproduce:

Hi,

I want to create a java file which includes maths

functions from maple, I try to do this with the maplet...

However, in order to start the programme, I must select

and open the maple...

So, can anyone tell me how to create an indepedent programme

which opens and works directly....?

A tool tip came up which says I can see the operations performed step-by-step. Can someone tell me where that feature is (what it's called)?

I have:

>solve(x+y+sqrt(x^2+y^2)

(24*(x-12))/(x-24)

I want to see step-by-step how Maple got to that answer. Thanks.

Hello All;

After having access to maple since maple 7 and never realy learning it, I decided that I would give it a good stab.

So far it's been cooperative. but I started from basic things wand worked my way through. I am now at the point where I need thisgs done and can't figure how to do them... shrort of rewriting the equations in the form I want.

I am working on exact differential equations and I need to convert this form:

Hey!

I'm really new on using maple 14 and I need help please.

I want to either connect maple 14 software with an oscilloscope for data acquisition or import the data captured by the oscilloscope to maple 14 and manipulate this data with the software for dynamic system analysis so I was wondering if anyone knows a programming code or a command to do this please =( I'm stuck

Thanks for your attention...

Hi!

I i have a 2nd order ODE where i want to chance the derivatives of x(t) and y(t) exactly at sqrt(x(t)^2+y(t)^2)=1 ,or before, as close to 1 as possible.

I found "event=" in/dsolve/numeric/events, where i can define the trigger and the action.

What is the difference between: "event=[[sqrt(...)-1,diff(x(t),t)=...],[sqrt(...)-1,diff(y(t),t)=...]]" and "event=[[sqrt(...)-1,[diff(x(t),t)=...,diff(y(t),t)=...]]]", because i get different results, which one is the correct form?

We have a list of cartesian coordinates [[x1,y1], [x2,y2],..., [xn,yn]], which describes some curve (say the way of a walking dog). We don't know any analytic expression for that curve. How to estimate the radius of curvature of the curve from below and above with Maple?