From boud w astro.uni.torun.pl  Mon Jun  6 06:19:08 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Mon, 6 Jun 2011 06:19:08 +0200 (CEST)
Subject: [Shape-univ] SR/GR exercise/lecture delayed
Message-ID: <alpine.DEB.1.10.1106060614050.26127@adjani.astro.uni.torun.pl>

witam

SR/GR exercises delayed for personal reasons.  Please learn them - in a few
days we can negotiate a day to do them with scores "on", and then an
exam date.

pozdr
boud



From boud w astro.uni.torun.pl  Mon Jun  6 06:23:02 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Mon, 6 Jun 2011 06:23:02 +0200 (CEST)
Subject: [Shape-univ] SR/GR exercise/lecture delayed
In-Reply-To: <alpine.DEB.1.10.1106060614050.26127@adjani.astro.uni.torun.pl>
References: <alpine.DEB.1.10.1106060614050.26127@adjani.astro.uni.torun.pl>
Message-ID: <alpine.DEB.1.10.1106060622250.26127@adjani.astro.uni.torun.pl>

PS:

On Mon, 6 Jun 2011, Boud Roukema wrote:

> witam
>
> SR/GR exercises delayed for personal reasons.  Please learn them - in a few

i meant: learn/finish the last set of SR/GR exercises :).

> days we can negotiate a day to do them with scores "on", and then an
> exam date.
>
> pozdr
> boud
>
> _______________________________________________
> Shape-univ mailing list
> Shape-univ w cosmo.torun.pl
> http://cosmo.torun.pl/mailman/listinfo/shape-univ
>



From faithlesstomas w gmail.com  Mon Jun  6 08:47:41 2011
From: faithlesstomas w gmail.com (Tomasz Kazimierczak)
Date: Mon, 6 Jun 2011 08:47:41 +0200
Subject: [Shape-univ] SR/GR exercise/lecture delayed
In-Reply-To: <alpine.DEB.1.10.1106060622250.26127@adjani.astro.uni.torun.pl>
References: <alpine.DEB.1.10.1106060614050.26127@adjani.astro.uni.torun.pl>
	<alpine.DEB.1.10.1106060622250.26127@adjani.astro.uni.torun.pl>
Message-ID: <BANLkTimmFLejY+1e7B+pZvB3CjPATxt5QA@mail.gmail.com>

Is that also includes tomorows exercises?

Tomek

2011/6/6 Boud Roukema <boud w astro.uni.torun.pl>

> PS:
>
>
> On Mon, 6 Jun 2011, Boud Roukema wrote:
>
>  witam
>>
>> SR/GR exercises delayed for personal reasons.  Please learn them - in a
>> few
>>
>
> i meant: learn/finish the last set of SR/GR exercises :).
>
>
>  days we can negotiate a day to do them with scores "on", and then an
>> exam date.
>>
>> pozdr
>> boud
>>
>> _______________________________________________
>> Shape-univ mailing list
>> Shape-univ w cosmo.torun.pl
>> http://cosmo.torun.pl/mailman/listinfo/shape-univ
>>
>>
> _______________________________________________
> Shape-univ mailing list
> Shape-univ w cosmo.torun.pl
> http://cosmo.torun.pl/mailman/listinfo/shape-univ
>
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From boud w astro.uni.torun.pl  Mon Jun  6 11:45:25 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Mon, 6 Jun 2011 11:45:25 +0200 (CEST)
Subject: [Shape-univ] SR/GR exercise/lecture delayed
In-Reply-To: <BANLkTimmFLejY+1e7B+pZvB3CjPATxt5QA@mail.gmail.com>
References: <alpine.DEB.1.10.1106060614050.26127@adjani.astro.uni.torun.pl>
	<alpine.DEB.1.10.1106060622250.26127@adjani.astro.uni.torun.pl>
	<BANLkTimmFLejY+1e7B+pZvB3CjPATxt5QA@mail.gmail.com>
Message-ID: <alpine.DEB.1.10.1106061140160.30645@adjani.astro.uni.torun.pl>

witam SR/GR students

On Mon, 6 Jun 2011, Tomasz Kazimierczak wrote:

> Is that also includes tomorows exercises?

Yes. Monday/Tuesday "live score" exercises both cancelled, but you are
all welcome to do them with scores disabled in order check that you
understand them. Then it will be easy to do them later with scores
enabled. It looks like one student has understood how easy sheet 1
exercise 1 + exercise 2 are. :)

i'll probably be online again tomorrow (Tuesday) sometime, so that we
can negotiate a day for finishing the exercises "officially" (with
scores enabled).

pozdr
boud




> Tomek
> 
> 2011/6/6 Boud Roukema <boud w astro.uni.torun.pl>
>       PS:
>
>       On Mon, 6 Jun 2011, Boud Roukema wrote:
>
>             witam
>
>             SR/GR exercises delayed for personal reasons.  Please learn them - in a few
> 
> 
> i meant: learn/finish the last set of SR/GR exercises :).
> 
>
>       days we can negotiate a day to do them with scores "on", and then an
>       exam date.
>
>       pozdr
>       boud
>
>       _______________________________________________
>       Shape-univ mailing list
>       Shape-univ w cosmo.torun.pl
>       http://cosmo.torun.pl/mailman/listinfo/shape-univ
> 
> 
> _______________________________________________
> Shape-univ mailing list
> Shape-univ w cosmo.torun.pl
> http://cosmo.torun.pl/mailman/listinfo/shape-univ
> 
> 
> 
>

From boud w astro.uni.torun.pl  Thu Jun  9 10:31:57 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Thu, 9 Jun 2011 10:31:57 +0200 (CEST)
Subject: [Shape-univ] SR/GR exercises: scores enabled now
Message-ID: <alpine.DEB.1.10.1106091028450.9971@adjani.astro.uni.torun.pl>

hi SR/GR students,

Most of you are at KRA now, so i've opened up scoring for
the exercises until 15.30.  For people who cannot finish the
exercises today, please propose another day e.g. next week.
There is no point doing the exam if you have not passed
(got at least 3 points) in the zaliczenia (there's probably
also a formal UMK rule on this...)

For the exam, some people are thinking of

   Tuesday 21.06.2011, from the 9.00 bus

but this is only a proposal, not yet definite.

pozdr
boud



From boud w astro.uni.torun.pl  Thu Jun  9 14:34:03 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Thu, 9 Jun 2011 14:34:03 +0200 (CEST)
Subject: [Shape-univ] octave: hadamard product = entrywise product = Schur
	product
In-Reply-To: <alpine.DEB.1.10.1106091028450.9971@adjani.astro.uni.torun.pl>
References: <alpine.DEB.1.10.1106091028450.9971@adjani.astro.uni.torun.pl>
Message-ID: <alpine.DEB.1.10.1106091223460.9971@adjani.astro.uni.torun.pl>

hi again SR/GR students

In octave, if you define matrices and column vectors and "row one-forms"
(called row vectors in octave), then operations you might find useful
include:

1. 
http://en.wikipedia.org/wiki/Matrix_multiplication#Hadamard_product
Hadamard product = entrywise product = Schur product

4-element column vectors  A and B

A .* B   gives you the Hadamard product = entrywise product = Schur product
meaning another 4-element column vector

(Hadamard product also has a different meaning - see the Wikipedia section)

- similar for  row vectors, matrices, etc.


2.  sum(A)

For a 1D column vector or "row one-form", the meaning and syntax are obvious.

For a 2D matrix, you can add along rows or columns - but you probably don't 
need this for these tensor exercises.


3. work on or print a row or column of a matrix

example: the 2nd column of matrix  g   is

g(:,2)

example: the 3rd row of matrix  g   is

g(3,:)



4. get the inverse of matrix   g

type

doc inverse

and read the documentation :).


pozdr
boud



On Thu, 9 Jun 2011, Boud Roukema wrote:

> hi SR/GR students,
>
> Most of you are at KRA now, so i've opened up scoring for
> the exercises until 15.30.  For people who cannot finish the
> exercises today, please propose another day e.g. next week.
> There is no point doing the exam if you have not passed
> (got at least 3 points) in the zaliczenia (there's probably
> also a formal UMK rule on this...)
>
> For the exam, some people are thinking of
>
>  Tuesday 21.06.2011, from the 9.00 bus
>
> but this is only a proposal, not yet definite.
>
> pozdr
> boud
>
> _______________________________________________
> Shape-univ mailing list
> Shape-univ w cosmo.torun.pl
> http://cosmo.torun.pl/mailman/listinfo/shape-univ
>



From boud w astro.uni.torun.pl  Fri Jun 17 23:25:27 2011
From: boud w astro.uni.torun.pl (Boud Roukema)
Date: Fri, 17 Jun 2011 23:25:27 +0200 (CEST)
Subject: [Shape-univ] SR/GR: exercises Mon 20.06.2011; exam Tue 21.06.2011
Message-ID: <alpine.DEB.1.10.1106171343220.11895@adjani.astro.uni.torun.pl>

hi SR/GR students,

Apparently your proposal is:

   12.30-15.30 Monday 20.06.2011:  finish exercises

   09.10-15.30 Tuesday 21.06.2011: exam

These are both fine by me. If anyone has any objections,
then please speak up quickly!

The exam itself should not require 6 hours :). I got 
through the full exam in about 1 hour, so a factor of 
2-3 slower should get you through in 2-3 hours.

pozdr
boud