[SS-2302] Smath File Crash

[SS-2302] Smath File Crash - Mensajes

#1 Publicado: 4/3/2016 23:48:32
NDTM Amarasekera

NDTM Amarasekera

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The following Smath File worked fine under 97.5890. It opens a Excel data file for analysis.
But it crashes under 98.5905.
Why this happens?
Archivo no encontrado.Archivo no encontrado.
Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka
#2 Publicado: 5/3/2016 8:08:32
Davide Carpi

Davide Carpi

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The crash is triggered in sum(1)

Even copying the Q matrix in a definition on the canvas the crash still happens.

Issue isolated: crash sum 1.sm (318,57 KiB) descargado 1330 vez(es).

P.S. try sum(identity(30)) and sum(identity(50)), the second one crashes for me

opened as issue SS-2302
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#3 Publicado: 5/3/2016 8:59:45
Jean Giraud

Jean Giraud

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Try this instead

Forum Matrix Crash.gif
#4 Publicado: 5/3/2016 9:07:29
Jean Giraud

Jean Giraud

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... sorry, forgot to attach the file

crash sum 1.sm (322,21 KiB) descargado 1331 vez(es).
#5 Publicado: 5/3/2016 12:44:48
NDTM Amarasekera

NDTM Amarasekera

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Wrote

P.S. try sum(identity(30)) and sum(identity(50)), the second one crashes for me



The second one crashes for me too
Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka
A 1 usuarios les gustó este mensaje
Davide Carpi 5/3/2016 13:38:00
#6 Publicado: 5/3/2016 18:33:25
Andrey Ivashov

Andrey Ivashov

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Davide Carpi 5/3/2016 21:05:00, NDTM Amarasekera 6/3/2016 9:53:00
#7 Publicado: 5/3/2016 20:55:35
Jean Giraud

Jean Giraud

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Ioan,

You can dedicate a function "VectorMatrixSum(data)"
Unwrap has many more applications, thus interesting.
Under the hood, your combined Sigmas, they first
Unwrap. Matrices don't exist in computing Machinery.
Matrices exist as serialised components.
The "BombCompute Mathcad 11", copy/paste a fair size
matrix [16000000 per say] takes substantial time.
"Warning: the requested operation may take long time".
Can't be more true.
Cppy/paste 16000000 vector: NO warning message... done.

Chers, Jean

VectorMatrixSum.gif
#8 Publicado: 6/3/2016 9:49:45
NDTM Amarasekera

NDTM Amarasekera

130 me gusta en 352 mensajes.

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Thank you Andrey.
The problem on Smath file crash is now solved.
Look within!... The secret is inside you. Best Regards Eng. NDTM Amarasekera - Sri Lanka
A 1 usuarios les gustó este mensaje
Andrey Ivashov 6/3/2016 17:37:00
#9 Publicado: 7/3/2016 0:44:24
Jean Giraud

Jean Giraud

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Wrote

Thank you Andrey.
The problem on Smath file crash is now solved.



"now solved", maybe not so wrt matrix manipulation.
Observe the matrix scale code: M-Min(M)
I found out this built-in code is weak, prone to failure
with incorrect error message " Matrix is not invertible".
There is no matrix inversion involved. Observe the robust
code doing same. Example has low numerical values. At values
in the order of 10^10, module [1] fails.

Jean

Utilities Matrix Scale.sm (14,19 KiB) descargado 1320 vez(es).

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Davide Carpi 7/3/2016 9:19:00
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