12-Amethyst

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Index in Index in Mathcad Prime 7.0

Forum|Forum|4 years ago
November 22, 2021
3 replies
10138 views

Hey, I would like to do the following in Mathcad Prime 7.0:

Screenshot 2021-11-22 153049.jpg

So an index in an index.

At the moment, whenever i press the index button in an index it sets me back up to normal but doesn't do another index.
Is there a way to do it?

Greetings

Mathcad Usage

Best answer by StuartBruff

@Spedex wrote:

Hey, I did not understand a 100% percent how you did that?
How did you get the grey thing here ?

I first typed in a <ctrl -> a in the worksheet, then copied it and pasted it into the Find dialog box (ctrl-f takes you there, or just click in the box at the bottom of the Mathcad screen). Pasting it results in the text (@ID a (@SUB a)) appearing in the Find box. This text is Mathcad's internal code representation of a_a.

I then used Windows' built-in application Character Map to find superscript a (^a)and subscript a (_a). (*), copied them and pasted ^a before the main a in the Find box and _a after the subscripted a to give (@ID ^aa (@SUB a_a)). Finally, I copied the new expression into a Math placeholder in the worksheet, and Mathcad converted it to ^aa_{a_a}.

A bit convoluted but it does the job.

Stuart

(*) I recommend setting Character Map to Cambria Math font first, as this font seems to display the largest number of characters in Character Map. Many fonts will display a character in Mathcad Math or Text regions but not in Character Map ... don't ask me why or why not.

As I said, though, you can't do it for every letter as not all of them have either/both a sub- or superscripted Unicode variant.

Stuart

S

StuartBruff

23-Emerald V

@Spedex wrote:

Hey, I would like to do the following in Mathcad Prime 7.0:

So an index in an index.

At the moment, whenever i press the index button in an index it sets me back up to normal but doesn't do another index.
Is there a way to do it?

You have to select the whole expression that you want to subindex.

2021 11 22 A.png

The direct approach would be interpreted as trying to take the index of 2 ... which isn't an array.

Although you can make it look like a subindex is happening ...

2021 11 22 B.png

Stuart

Mathcad Express 7

S

Spedex

Author

12-Amethyst

Hm, for me it is still not working.

I do

Then i select everything:

and then press on the index button, but nothing is happending. And when i start writing now the term before will just be erased.

Am i doing something wrong?

Greetings

L

LucMeekes

23-Emerald IV

Note that the 'index' button is '[', while the 'subscript' button is [Ctrl _ ]...

Success!
Luc

L

LucMeekes

23-Emerald IV

I suppose you mean subscript (You should NOT confuse that with index).

Not normally, but you can make something that will look like what you want at first glance:

Note that this is zoomed in to 225%.

But if you set the cursor on it, you can see how it was created:

It's an a with a literal subscript a, that has an index a with a literal subscript a, that has an index a with a literal subscript a, that has an index a with a literal subscript a, that has ....

Whether you can use this or not depends on the structure of data that you want your identifier to relate to.

And of course you can create an index to an indexed variable to an indexed variable to an indexed variable to...: