Rotate matrix Quadrants

#1 Posted: 4/10/2017 10:35:15 AM

Jean Giraud

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Often, very useful .

Jean

Utilities Matrix Rotate Quadrant.sm (31 KiB) downloaded 68 time(s).

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Arie 4/10/2017 12:19:00 PM, NDTM Amarasekera 4/10/2017 12:23:00 PM

#2 Posted: 4/10/2017 12:08:46 PM

Davide Carpi

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even simpler

2017-04-10 17_06_46-SMath Studio - [Utilities%20Matrix%20Rotate%20Quadrant.sm_].png

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Arie 4/10/2017 12:19:00 PM, NDTM Amarasekera 4/10/2017 12:23:00 PM, Radovan Omorjan 4/11/2017 10:24:00 AM

#3 Posted: 4/10/2017 1:19:26 PM

Jean Giraud

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Wrote
even simpler

Thanks Davide: great 6179 !

Jean

#4 Posted: 4/10/2017 2:07:40 PM

NDTM Amarasekera

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Why this happens with attached worksheet?
Mirror_Problem.sm (20 KiB) downloaded 42 time(s).

Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka

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Davide Carpi 4/11/2017 6:22:00 AM

#5 Posted: 4/10/2017 6:43:24 PM

Jean Giraud

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The two red regions created "Unknown error".
The algorithmic chain fails.

Jean

Mirror_Problem.sm (20 KiB) downloaded 35 time(s).

Utilities Matrix Rotate Quadrant.sm (59 KiB) downloaded 40 time(s).

#6 Posted: 4/11/2017 6:22:38 AM

Davide Carpi

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Wrote
Why this happens with attached worksheet?
Mirror_Problem.sm (20 KiB) downloaded 42 time(s).

You found a bug in el(), thank you!

added in BTS [SS-2438]

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#7 Posted: 4/12/2017 8:20:09 PM

Jean Giraud

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Wrote
You found a bug in el(), thank you!

Hello Davide,

IMHO, the case reported by collab NDTMA is not a bug.
Simply an instance of "shadow in the context" [Mathematica].
Similar broken algorithmic links have been encountered in Mathcad.
We can't play much with the "vector/matrix" codes.
Here is a similar example in the attached.

Cheers, Jean

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