CAS refer to rows and calculating with rows

ccambre shared this question 2 weeks ago
Answered

In Classic 5 I can refer to rows with the $-sign. With this I could exercise e.g. on solving systems of equations using combination. In app and Classic 6 the $ sign isn't recognised and neither can I perform anthing as vgl1 + vgl2.Is there anything similar to perform this kind of symbolic calculating with CAS rows in 6 or app?

Files: CAS.png

Comments (5)

photo
1

what's the problem?

/wdKrWri3Mr0jQAAAABJRU5ErkJggg==

photo
1

So it was clearly a technical problem this morning where amost any typical CAS feature didn't work:

$ wasn't recognised, giving the impression it had dissappeared as CAS feature, typing a+ a created sliders, Factoring letter forms (also a² + 2 ab + b²...) gave errors.

Meanwhile all those things work again, so indeed, now there's no problem anymore. Thanks for answering.

chris

348a04087e421534beef474d55e97f83

photo
1

So CAS functions work again as well as $- reference.

In CAS to the symbolic calculation works but I regret that the numbering and $-refer isn't included or recognized.

c33fb0f6baaf7a51553ae72b14fd2333

chris

photo
1

(remarque quotient et produit ne prennent en compte que le membre de gauche)

Files: CAS.png
© 2019 International GeoGebra Institute