## goebeld

Mr. Dieter Goebel

## 50 Reputation

0 years, 107 days

## Get points...

Thanks for your help, it works fine.

But how can I get the values of sol[2] because sol[2,1] returns x=3 and not 3.

## DotProduct...

Until now I preferred e.g.

with(Student:-MultivariateCalculus)

T_len := sqrt(simplify(DotProduct(T, T)))

## T__len := sqrt(simplify(T^+ . T));...

Dear Rouben, thanks for your extensiv help.

What's the meaning of "T^+" in T__len := sqrt(simplify(T^+ . T));

For me, it's new.

## Shortest path...

Thanks for reply. Yes, the shortest path connecting any two surface points.

## Tahnks...

Dear Scot, thanks for your help. Now it works. I didn´t know that I can address by using arrowList[1, 1][1];
arrowList[1, 2][1];

Thanks

## Plugin Developement...

Dear Thomas, thanks for your response.

To be honest I don't understand the concept of Maple API Integration. I developed several Java plugins in Eclipse to integrate Visual Paragdigm by using it's API library.

I'm using a MacBook Pro and I have no idea how to call the Maple APIs using Eclipse.

Best regards, Dieter

## OpenMaple and Eclipse...

Dear Thomas,

My IDE is Eclipse and there I have to add referenced jar files. That's why I was looking for Maple jar files.

So how do I have to configure my Eclipse? Is there a guide or example?

Thanks

## Also thanks for help...

@Carl Love Also thanks for help

## Thanks for help, it works fine...

@acer Thanks for help, it works fine

## Thanks, it works...

Tahnks a lot - that's what I'm looking for.

## e.g. pointplot3d w/ vector coordinates...

Dear Rouben, thanks for reply. I simply like to plot the vector coordinates of a point.

points := pointplot3d([P, Q, R, M], color = [green, blue, red, black], title = "P", symbol = cross, size = [1, 1], labelfont = [Courier, bold, 40])

And additionally I would like to plot the coordibates of the points.

## Thanks a lot...

Thanks for help.

## Great help...

@dharr much easier

## Gracias...

Thanks for help to all

## Brackets Technique...

Dear Scot, thanks for your help; it works fine for me to extend an existing matrix by rows and columns.

There are three things I still don't understand:

1. why the extend command doesn't work?

2. I do have a MacBook Pro M3 with a German keyboard. But where are these brackets? Also the Brackets Technique is completely new for me. What is the difference?

3. How to add more than one row or column?

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