## 242 Reputation

16 years, 327 days

## plot3d labels and legends...

Maple

Hi, there were already some topics about labeling plots but I have still a question:

I would like to label my axis with e.g.: rho [kg/m^3]. roh should be displayed symbolic (2D output) as well as m^3. On the other hand I would like to avoid that Maple builds a (2D) fraction with kg/m^2. Does anybody know how to do this?

The other thing: Is it possible to add an legend to a 3D plot?

Thanks!

## Data Export to Textfiles...

Maple

I have calculated data in form of a matrix. The corresponding x- and y-values are given in two lists (see attached file).

Now I would like to export the data to a textfile to use it in another program. The problem is, that I need the following format (name_listA[i]_listB[j]= is a text string where the corresponding x- and y-values are integrated)(values[i,j] is the number out of the matrix):

name_listA[1]_listB[1]= values [1,1]

name_listA[1]_listB[2]= values [1,2]

etc....

## Import Textfiles...

Maple

Is it possible to import the content of textfiles(*.txt) directly into Maple11?

Most analytical and simulations tools I use provide textfiles as output. To import them into Maple11 I have to import them into an Excel file first and from there finally into Maple. That is not very effective...

## Solving Equations...

Maple

Does anybody know how to solve the attached quation analytically for rho? The solve command fails.

(Solving numerically and plotting with implicitplot3d works well.)

## Extrapolation of 3D Data...

Maple

For certain points I have determined values: z depending on x and y. I look for a method to get extrapolated values for any x-y combination in this area.

To fit a 3D curve is not feasible because the fitted curve would not deliver the exact z values for a given data set (=essential condition). For a 2D data set I would do something like a linear regression between two data points but I have no approach to do something similar with data points depending on two variables. I hope somebody can help me to solve this problem. Thanks!

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