okay so the question i have to answer is "write a maple function that computes the area of a triangle in the plane from the coordinates of the vertices"  

ive gotten this far 

with(geometry);

triangle(ABC, [point(A, 0, 0), point(B, 2, 0), point(C, 1, 3)]);

area(ABC);    3

but how can i write so when you type say AA([[0,0],[10,10],[10,0]])  it returns  50?  (AA being the function name)

Thanks in advance to whoever helps.

I have asked this question before (2008) but no one answered. I just repeated my error and am still flummoxedflummoxed.

In early versions of Maple (Maple 1 Maple 3) one could halt a computation on the Mac by holding down the command key and the period; Maple would respond quickly. Now one can try that or click on the red hand in the tool bar and interrupt the computation but it doen not necessarily stop.

I inserted a print command in a procedure so that I culd...

Can anybody tell me what error is in the following function?

F:= ([[a,b], [c,d], [e,f]]) -> (1/2) abs((c-a)(f-b)-(e-a)(d-b));

Thank you!

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Good afternoon sir,

I would like to the usage and purpose of the maple tool with(MTM)

I request your kind support in this regard.

Good morning sir.

This is just to get awareness that can we able to generate the Greshgorin circles for a given square matrix A

by using direct maple commands in linear algebra package.

I request your kind support in this regard.

I want to fit a function to data which I did with the fit command

f := Fit(1+a*n^b, X, Y, n, output = [leastsquaresfunction])

btw: the output standarderrors does not work...

it produces the error:

Error, (in Statistics:-Fit) values for these items are not available: ["standarderrors"]

Now maple just returns the least square parameters but without errors.

How can I get the errors for the parameters?

So I am working with the OrthgonalExpansions library (amazing library, by the way! Just what I needed!), and it is great, except it seems to be having trouble doing a 2d Fourier expansion.

I'll upload my document. transformApprox.mw

In this document, I am running the BesselSeries expansion as we speak, but the FourierSeries expansion (in 2d) can never seem to complete. It always say that it has an

I am working with a home-brewed program that evaluates magnetic fields from air-core coils. While I have analytic expressions for the field itself, the code involves numeric integration through regions of the field. It also involves adding up the contributions of several coils.

Speed is becoming an issue. I dearly would like to run some of the integrations (which is where the time is spent) in parallel. The contributions from different coils would trivially parallelize,...

The goal is to get Kalman Form

https://docs.google.com/file/d/0Bxs_ao6uuBDUT25BeVhtWjZwRUU/edit?usp=sharing

https://docs.google.com/file/d/0Bxs_ao6uuBDUVXU5dXh6Rl9zUUU/edit?usp=sharing

I am doing the example in page 707 of Partial Differential control theory Volume 2 by J.F.

when using Robertz Daniel's Ore and Involutive packages

with(Involutive):

with(OreModules):

Alg := DefineOreAlgebra(diff=[D,t...

Find a(n)of sequence:5, 7, 7, 2, 1, 5, 6, 6, 4, ...............

Hello everyone,

I have a system of PDEs

restart:with(PDEtools):with(plots,implicitplot):

Pr:=1:A:=1:lambda:=1:Omega:=1:epsilon:=1:C1:=1:N:=5:b:=1:fw:=1:a:=1:

Eq1:=diff(f(eta,tau),eta,eta,eta)-diff(theta(eta,tau),eta)*diff(f(eta,tau),eta,eta)+

f(eta,tau)*diff(f(eta,tau),eta,eta)-(diff(f(eta,tau),eta))^2-(1+A*(1-theta(eta,tau)))*diff(f(eta,tau),eta)

+lambda*(1+epsilon*cos(Pi*tau))*theta(eta,tau)-Omega*diff(diff(f(eta,tau),tau),eta);

Good morning sir,

I request you to provide the correct Maple proc to generate the Gershgorin circles for a given

Square Matrix

Good morning sir,

I request your support for the above cited subject.

Once a plot is generated using Maple commands for a certain problem, to lable the axes

I am facing the problem to lable at the desired positions on the graph.