Hello,

I have a question about Clear Fontion.

For scalar Number there's no problem with Clear Function.
But with Matrices and Vector Clear Function do not work.

Indeed, after used Clear Function with matrices ,
I can't redefined the matrice variable wich is cleared like a matrice.
I have to redefined the variable like a scalar end then like a matrice.

Sebast3337

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- Clear does not work at all in my case ( running mono-build from windows, with the void file named "portable.version" )
- What's worst: I've noticed that if a plugin is disabled by the user, SMath ignores this action when recalculating the worksheet and the plugin still works. Besides the plugin is shown as enabled when the program is restarted. Please confirm this issue.

Wrote

Indeed, after used Clear Function with matrices ,
I can't redefined the matrice variable wich is cleared like a matrice.
I have to redefined the variable like a scalar end then like a matrice.

Sebast3337

I can't reproduce the issue (see the screenshot), could you attach an example (worksheet and screenshot)?

Wrote

Besides the plugin is shown as enabled when the program is restarted.

The "disable" action is related to the running session, even in the previous SMath relases. I think this behavior is by design.


best regards,

Davide

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Apparently I was using the plugin functions incorrectly, so everything works fine including the disable function in the current session.
I was putting Clear() without an equal, so in the above example Clear(A) does not work, I should have written Clear(A)=

Wrote

Wrote

Indeed, after used Clear Function with matrices ,
I can't redefined the matrice variable wich is cleared like a matrice.
I have to redefined the variable like a scalar end then like a matrice.

Sebast3337

I can't reproduce the issue (see the screenshot), could you attach an example (worksheet and screenshot)?

Wrote

Besides the plugin is shown as enabled when the program is restarted.

The "disable" action is related to the running session, even in the previous SMath relases. I think this behavior is by design.


best regards,

Davide

I have installed Net framework 4, and the problem with function Clear disappeared

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Could someone try this.

Regards,
Radovan

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Confirmed and explained in the attachment.

Clear() deletes the value of a variable but the type is set to line(). Element assignment to line()-variables outside the existing range generates unpredictable results.
If you want to do matrix element assignment with a cleared variable then you have to change the type first by assigning a (possibly empty) matrix.

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Clear.sm (40,93 KiB) scaricato 1449 volta(e).