## goebeld

Mr. Dieter Goebel

## 50 Reputation

0 years, 107 days

## Turning points of 3d plane...

Maple

Dear all, I have the following issue:

Goal is to calculate saddle, turning point, etc.

As you can see in the code above only in case of a second restart x2 is calculated correctly.

Thanks for help.

## Space curve on a 3d plane connecting 2 p...

Maple

Dear all, is there a maple call to calculate the space curve connecting two points of a 3d plane?

e.g. the plane is defined by: f(x,y) = -x^2/9 + y^2/4

The two points are: P = (1,2,0), Q=(1,-1,0)

Searched: space curve laying on 3d plane connecting the two points.

Thanks

## Nested square brackets in matrix...

Maple 2024

Dear all, in the example below I create a matrix(3x2) and each element contains a vector. How can I avoid the double brackets of the matrix elements or eliminate the double brackets?

Thanks for help

## OpenMaple API still exist?...

Maple 2024

Dear all, in Maple Help exists the documentation of how to use the OpenMaple API Library. But I didn't found a link where to download the necessary libraries. I found e.g. the library maple-0.17.4.jar but it doesn't contain com.maplesoft.openmaple.*

http://www.java2s.com/example/jar/m/maple-index.html

Tahnks for help

## Nested SEQ to simplify textplot3d...

Maple 2024

Dear all, how can I simplify the following command by using nested SEQ?

tagsCornersPlot := textplot3d([[seq(cornerPoints[1 .. dim, 1]), cornerPoints[1 .. dim, 1]], [seq(cornerPoints[1 .. dim, 2]), cornerPoints[1 .. dim, 2]], [seq(cornerPoints[1 .. dim, 3]), cornerPoints[1 .. dim, 3]], [seq(cornerPoints[1 .. dim, 4]), cornerPoints[1 .. dim, 3]]], align = {above, right}, font = [Courier, bold, 20])

 1 2 Page 1 of 2
﻿