Matrix product

Matrix product - Why a Syntax Error ? - Messages

#1 Posted: 4/8/2016 5:39:36 AM
Mikaël

Mikaël

0 likes in 3 posts.

Group: User

Hi to all,

Although I am registered since 2014, I only found some time recently to "play" with SMATH.

First of all, I would like to thank Andrey, the man with a magic brain, for his huge work ;-)
Smath is a great tool and I plan to use it for a teaching purpose.

To the point now. I have attached an example with a matrix calculation where Smath math gives me
a "syntax error". I would like to understand what is going wrong.

Any help would be appreciated. Thanks in advance.

Best regards,

MikaëlMatrixSyntaxError.JPG
#2 Posted: 4/8/2016 6:30:14 AM
Mike Kaganski

Mike Kaganski

184 likes in 434 posts.

Group: User

That's because you try to assign the product not to a variable, but to a matrix. Try replacing leftmost part (before :=) to some variable. It will hold the resulting matrix.

Also, you may avoid constructs like "D2R", if you just use degree units.

scr20.png
С уважением, Михаил Каганский
1 users liked this post
Andrey Ivashov 4/8/2016 8:00:00 AM
#3 Posted: 4/9/2016 5:16:07 AM
Mikaël

Mikaël

0 likes in 3 posts.

Group: User

Hello Mike,

Thanks for the tip ! This works fine indeed.

Yes, using the units would be certainly a better idea to avoid my "old" constructions. I'll explore the units in the next days.

Best regards,
Mikaël
#4 Posted: 4/19/2016 8:59:19 PM
Mike Kaganski

Mike Kaganski

184 likes in 434 posts.

Group: User

Wrote

That's because you try to assign the product not to a variable, but to a matrix. Try replacing leftmost part (before :=) to some variable. It will hold the resulting matrix.



This Mathcad syntax must work since 5953.

scr34.png
С уважением, Михаил Каганский
#5 Posted: 4/20/2016 8:09:07 AM
Mikaël

Mikaël

0 likes in 3 posts.

Group: User

Hi Mike,

Good news. Thanks for this useful information ! I'am still working with the 0.98.5935
and I'll try the 5953 soon...

Best regards,

Mikaël
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