Hi everyone,
my next question is:
is it possible to make visibility of formula or region false or true?
I mean for ex.:

if x = 0 then [all input data / formula / region] f:=10 mm is visible else is not

I have a lot of data which are depends on a type of an element and sometimes the part of the data are needed, sometomes not. In this first case I want to hide them.

Jadalbert

You can collapse math regions [data, formulas],
then enable/disable the collapsed area.
The other answer is: "Monkey don't see, Monkey don't do"
We have no idea of what you are attempting ?

From the Truth Table, we can do lot more.

Thank You for reply.

I try to do the sheet for calculate a specific engineering problem. So I have a few type of shapes. For example (trivial, of course) we have two figures: rectangle with 'a' and 'b' dimension, and square wchich has only one dimension 'a'. To calculate the area of the square we need only 'a' dimension. Then the area equals 'a^2'. We dont need 'b' and I want to hide this 'b' because I dont need it. But if my choice is to calculate rectangle area, the 'b' dimension have to be visible.
Is possible that a region inserted into the sheet can be expand or collapse dependind of choice? In such a region I would hide the data that is needed depending on the choice of the figure.
I dont know if I have clearly explained the problem.
Jadalbert

... define A:=
in the place holder, click f(x) menu
browse for 'cases', select, insert.

Wrote

Is possible that a region inserted into the sheet can be expand or collapse depending of choice?

AFAIK: NO
You are asking too much baby stuff to Smath a most advanced CAS.
Old Mathsoft Collab Steen created a freeware Geogebra.
Apparently does not exist anymore.

As said by Jean as for now there isn't this possibility (dinamic hide or collapse)... The only ways are to arrange wisely your worksheet to have different choices in collapsed areas (save the worksheet with all the areas collpased and follow the path by expanding what you need manually at every run) or creating a worksheet for each type of problem.

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Thank You for reply and help.

The solution with the cases function is not good for me because I want to hide the data. In some cases there are to many diferent data to edit and users can make a mistake. Or this could generate to much misunderstanding.
I have to smart arrange my workseet as Davide said.

Jadalbert

Hi. This is something like you want, but it could be very hard to implement, except for images and some few equations, as in the attached. Playing with include and run utilities, can have more dynamic results.

Examples.zip (115 KiB) downloaded 70 time(s).

Best regards.
Alvaro.

Razonar

Very interesting. I need to work on this idea. Thank You.

Jadalbert

Wrote

is it possible to make visibility of formula or region false or true?

Answer is NO immediately by 1/0 logic ... Alternately
1. background black those math regions black is [1,1,1]
2. create a black image, capture with Wingrab [freeware]
... select/crop the black region in Wingrab
... paste that black image in Smath
... now in Smath you can re-paste as many as wanted
... slide the black over the regions
... by the handles you size the black master as desired

Another approach is to put the math regions in a Formatted Label
black the all maths in Formatted Label all at once
as well, if those regions aren't use: disable Formatted Label.

Borrowing bits and pieces from here and there that makes a soup project.
A project that is not stand alone will not pass Quality Control.

Page18.sm (9 KiB) downloaded 35 time(s).

Wrote

The solution with the cases function is not good for me because I want to hide the data. In some cases there are to many diferent data to edit and users can make a mistake. Or this could generate to much misunderstanding.
I have to smart arrange my workseet as Davide said.

Do you have something in hand for help ?