[SS-2340] user-defined order of computation ignored

#1 Posted: 5/9/2016 10:59:24 AM

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Here is in attachment files illustrating wrong computation of local variable.
Using version 0.98 (build: 5935)

bug.sm (7 KiB) downloaded 40 time(s).

#2 Posted: 5/9/2016 11:12:24 AM

Mike Kaganski

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Seems that it incorrectly optimizes the order of evaluation (despite brackets explicitly set).
This looks like a bug.

Aside, please note that this may be simplified like at the top of the screenshot.

Submitted SS-2340

A workaround:

And BTW, you may rewrite your Module() like this:

because scalar multiplication of vectors is sum of products of their corresponding elements multiplied by cos of angle between them - and for identical vectors, cosine is 1.

С уважением, Михаил Каганский

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Davide Carpi 5/9/2016 11:48:00 AM

#3 Posted: 5/9/2016 1:20:20 PM

Tirastriel

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Thanks for quick answer with tips, I'll use it

#4 Posted: 5/9/2016 10:38:11 PM

Jean Giraud

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Define as function for greater functionality/elegance.

#5 Posted: 5/11/2016 12:32:06 AM

Basile

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Jean,

Are you using matrices curved lines?
I get squares.

Thanks,
Basile

#6 Posted: 5/11/2016 11:54:12 AM

Jean Giraud

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Wrote
Jean,

Are you using matrices curvedlines?
I get squares.

Basile,

I'm at Smath 5346. The matrix square bracket came recently
with some of the latest nightly build. Smath 5346 does not
have the matrix square bracket, which I love very much.
The 2nd level bracket in formula is still missing [I think ?].

Cheers, Jean

#7 Posted: 5/11/2016 11:55:16 PM

Basile

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Jean,

Any idea why does not evaluate but gives error message?

Basile

#8 Posted: 5/12/2016 12:08:22 AM

Jean Giraud

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