Digital explorations

Last April, HP showed off its newest Prime graphing calculator.

It is colored, uses lithium batteries and has a better? touchscreen graphical user interface.

The new calculator boasts of the following:

• 3.5 "multi-touch (320 x 240 pixels) DISPLAY WITH 65536 COLORS.
• Processor ARM9 400MHz
• 256 MB of flash memory
• 32 MB of RAM
• Rechargeable Lithium-Ion Battery
• bushed metal body
• Dynamic Geometry
• Standard algebraic and RPN modes
• CAS
• Optionwl Wireless connectivity

Pricing and availability has not been announced yet, but the best guess is late summer.

From http://www.neobits.com/hewlett_packard_hp_nw280aa_b1k_la_la_hp_prime_p5737329.html the price is USD 113.95

I first read this in EdGat's FB status. will search the original source so we can give proper atttribution. In the meantime, let us enjoy this piece.

As I grow in age, I value women who are over forty most of all. Here are just a few reasons why: A woman over forty will never wake you in the middle of the night to ask, “What are you thinking?” She doesn’t care what you think.
If a woman over forty doesn’t want to watch the game, she doesn’t sit around whining about it. She does something she wants to do. And, it’s usually something more interesting.

A woman over forty knows herself well enough to be assured in who she is, what she is, what she wants and from whom. Few women past the age of forty give a hoot what you might think about her or what she’s doing.

Women over forty are dignified. They seldom have a screaming match with you at the opera or in the middle of an expensive restaurant. Of course, if you deserve it, they won’t hesitate to shoot you, if they think they can get away with it.
Older women are generous with praise, often undeserved. They know what it’s like to be unappreciated.

A woman over forty has the self-assurance to introduce you to her women friends. A younger woman with a man will often ignore even her best friend because she doesn’t trust the guy with other women. Women over forty couldn’t care less if you’re attracted to her friends because she knows her friends won’t betray her.
Women get psychic as they age. You never have to confess your sins to a woman over forty. They always know.

A woman over forty looks good wearing bright red lipstick. This is not true of younger women. Once you get past a wrinkle or two, a woman over forty is far sexier than her younger counterpart.
Older women are forthright and honest. They’ll tell you right off if you are a jerk, if you are acting like one! You don’t ever have to wonder where you stand with her.

Yes, we praise women over forty for a multitude of reasons. Unfortunately, it’s not reciprocal. For every stunning, smart, well-coiffed hot woman of forty-plus, there is a bald, paunchy relic in yellow pants making a fool of himself with some twenty-two-year-old waitress.

Ladies, I apologize.

For all those men who say, “Why buy the cow when you can get the milk for free,” here’s an update for you. Now 80 percent of women are against marriage, why? Because women realize it’s not worth buying an entire pig, just to get a little sausage.

Submitted on 2013/05/11 at 6:56 pm

http://www.canadagoosesolds.fr/rss1/7.xml

1110th Chapter evolution of

Boo

Pond built to rock bubbles break open issue Qing Xiang, into a dense rays gushing out from time to time around the body like a warm, warm, very fluffy.

What is this? Fan Ye asked purple pupil Women.

He stared at the pool in front of a burst of surprise, such a dense aura wrapped around him, and that its existence so that he may have to crossing the robbery, it is wonderful.

Purple pupil woman glanced at the pool, some disdain, with a trace of irony, said: The a metaplasia water pool only, can be grown up on the piece of metal, to make it even more spiritual, you have such indigenous natural not seen.

She no longer look at the but frowning Joan nose, to see the damage the inner wall of the spacecraft, a very distressed look, like this spacecraft extremely cherish.

Grown up on the pool of metal materials, I thought it was the elixir Ling Chi. Fan Ye said casually http://www.uggbaileybuttonboots.nl/8.xml walked two laps around the pond.

He poises to want a piece of metal thrown into cleaning, and asked how the purple pupil woman grown up, to have what kind of effect, the result was ignored, and only gave him a back of the head.

Purple-haired man to see him really wasted water, distressed to death, the corners of the mouth are uncontrolled convulsions, you want to say anything, but was forced back, which rightly turned to look to the other side, to take up eye but not out of mind.

Fan Ye mouth slightly, said: You agree that I have a golden statue of the legendary immortal, rely on the flesh and blood body than rely on those better, then I simply forget grown up on this pool of liquid metal scraps.

When he finished, he untied http://www.uggbaileybuttonboots.nl/6.xml combat gear, are entering the pool, a chaos like.

Purple pupil woman being Fan Ye youth interrupted a lot of bones http://www.canadagoosesolds.fr/rss1/43.xml suddenly change color, no peace, they know, certainly had been aware of each other, are desperate sprang to the pool.

Fan Ye laugh, a flick of the crystal clear chain of God, the two of them all locked, you can not move, set at the side.

Here is the most important place on the spacecraft, sealed metal wall, engraved with mysterious pattern guardian of God, in a rock pool built into the main laboratory of this center, and the mysterious instrument display seems out of place, can not be Where goods.

Rock into a silver-gray, intrinsic mystery mineral, emitting a soft light, came near before and after the freshness of a people reborn, pool dense xiaguang the flow, but no smell.

However, this colored God fluid of too mysterious, Fan Ye just put his hand into the body golden Holy Blood Pentium, and the surface is interwoven lightning and thunder.

What is this thing? Like an electric shock-like, he quickly receive a hand back, not did not expect this is a rare treasure liquid, however, it seems that even as there than you think.

Purple pupil woman paler than ever, excited look, and tried to prevent the Fan Ye, however, as prisoners, there is unlikely to be successful, very unwilling http://www.canadagoosesolds.fr/1.xml .

It is obvious it is computer generated so we marked it as spam.

It is getting harder to write content for WordPress powered blogging sites. the Add media button does not work! Yaay.

I saw this from a Facebook wall of a photographer friend, Yetbo.

It was the best open-source web browser just before Firefox went open soure too. It was fast and simple,

The new project name is Epiphany. I have seen it during the intermediate upgrades to Ubuntu.

I cannot find the epiphany browser in the synaptic application installer. So I tried the following, after viewing the project page.

sudo apt-get install epiphany-browser
sudo apt-get install epiphany-extensions

Now clicking on Desktop/Applications/Internet we see the Epiphany Web Browser included. Clicking on it gave me a plain looking Epiphany web browser.

We will explore this software in the coming days.

I installed using unet-bootin the image file slacko-5.5-4G.iso
to a usb flash drive. When I rebooted,it showed messages that it loaded the OS to the memory, prepared the hard disk for usage, then it hangs!
I am now downloading the Precise Pangolin version of Puppy. Will keep our readers posted.

The .bashrc file is automatically executed at login in a Linux powered machine. If you have made any changes to the .bashrc file, you can reload it using the command line

. ~/.bashrc

or

source ~/.bashrc

The code is for education purposes. It cannot compete with computing the determinant by first performing triangularization on the matrix, and multiplying the diagonal elements.

One first selects a row or column for expansion by specifying its index. Then the determinant is computed as (expansion is by row in the following formula), where the first row has index 0 (PYTHON being zero based.)

The in the above formula is the minor of the matrix obtained by deleting a row and column of the original matrix.
The is the cofactor of the input matrix element .

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"""
File    detbyexpansion.py
Author  Dr. Ernesto Adorio
        Unniversity of the Philippines, Extension Program in Pampanga
        email: ernesto . adorio @ gmail . com
Desc    computation of determinants by Laplace expansion .
Version 0.0.1 March  28, 2013
"""
 
def minor(M, delrow, delcol, keepM = True):
    # Returns the minor of a matrix with the row delrow and column delcol removed.
    if keepM: # make a copy.
       MM = [row[:] for row in M]
    else:
       MM = M  # makes changes to the original M! you are warned.
    del MM[delrow]
    for row in MM: del row[delcol]
    return MM
 
def detbyexpansion(M, index=0, byrow=True):
    """
    Computes determinant by cofactors
    Input
     M         - matrix
     index     - index of row or column to expand. indexing starts at 0 in Python!
    """
    if type (M) != type([]):
       raise ArgumentError, "Not a list"
    nrows = len(M)    # number of rows
    ncols = len(M[0]) # number of columns
 
    if nrows!= ncols:
       raise ValueError, "not a square matrix"
    if nrows == 1:
       return M[0][0]
    if nrows == 2:
       v = (M[0][0] * M[1][1] - M[1][0] * M[0][1])
       return v
 
    det = 0
    sign = -1 if (index % 2 == 1) else 1
    for j in range(ncols):
        if byrow:
           subM   = minor(M, index, j)
        else:
	   subM   = minor(M, j, index)
        subdet = detbyexpansion(subM)
        if byrow:
	   det    += sign *M[index][j] * subdet
	else:
	   det    += sign *M[j][index] * subdet
        sign   = -sign
    return det
 
#test matrix 1
M1 = [[1,0,-2, 5], [3,1,4, 6], [5,2,-3, 7],[4,5,6,7]] 
 
#test matrix2
M2 = [[5,6,1], [2,3,0], [7,-3,0]] # returns -27
 
 
print detbyexpansion(M2,index=0, byrow = False)

When the above Python code is run on the command line, it returns -27 the determinant of the matrix of the example 5 in page 97 of Alpha Chiang, "Fundamental methods of Mathematical Economics" textbook.

I just bought a new LT 40 from Villman last last week. I am surprised that the F11 and F12 keys for screen brightness control simply do NOT work even with built-in default Linpus. Installing Ubuntu OS for a full graphical interface also do not work with theF11 and F12 keys.

I was expecting since Gateway is now under ACER, it would have the same good behavior with Ubuntu. I am disappointed, but I will give it a month more to find a solution.

Gateway/Acer should not sell machines which do not function with the leading Ubuntu OS. It is high time manufacturers should be conscious of the OPEN SOURCE movement.

The suggest fix by Zion Lobo, published in 2011 http://ubuntuforums.org/showthread.php?t=1751333 does NOT work.

Re: unable to change screen brightness in ubuntu 11.04
this command worked for me:

echo 0 > /sys/class/backlight/acpi_video0/brightness for low brightness
OR
echo 6 > /sys/class/backlight/acpi_video0/brightness for increased brightness.

UPDATE May 16, 2013

Tthanks to the Fedora project people [see https://bugzilla.redhat.com/show_bug.cgi?id=833597], a temporary fix is by issuing the command in the command line;

sudo setpci -s 00:02.0 f4.b=50

It worked after the latest updates to Ubuntu 12.04.

My machine specification:

I still have to verify if it has a bluetooth device.Seems it has.

Here is info on Intel 2600 dual core processor: http://www.notebookcheck.net/Intel-Atom-N2600-Notebook-Processor.54661.0.html

Review of LT 40 : technogrub

They were offering good service while maintained. Now they are obsoleted and the web server log files are increasing in size , necessitating manual deletion. I am referring to the external-files and the Google Weather API plugins.

I like the Cinnamon desktop of my Linux Mint powered old laptop. Unfortunately, the screen was giving me a lot of trouble, and had to make do with a new netbook. I had a Ubuntuntu 12 installers in a usb and this was the most convenient for me. The school wifi was not operative and I could not create a new linux mint on usb.

Click on the link: nooslab.com
for instructions in installing Cinnamon. We dont have to hate the UNITY desktop, you have a choice to change it to Cinnamon.

Who would not forget the Sarrus rule, a method for computing the determinant which unfortunately works only for a 3 by 3 square matrix? One can simply return an explicit formula but where would be the fun of programming? Below is a not simple implementation

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# file     sarrusrule.py
# author   Ernesto P. Adorio, Ph.D.
# desc     Computes determinant using Sarrus rule.
 
def sarrus(M):
      """
      Determinant of 3x3 square matrices matrices by
      Sarrus rule.
      """
      m = len(M) #number of rows.
      n =  len(M[0] )
      if m!= n:
         raise ValueError, "non-square matrix in sarrus()"
      if m > 3:
         raise ValueError, "dimension must not be greater than 3 in sarrus()"
      if m == 1:
         return M[0][0]
      if m == 2:
         return M[0][0] * M[1][1] - M[1][0]* M[0,1]
 
      det = 0      
      for gap in range (m):
             prod = 1.0
             for i in range(m):
                  j = i + gap 
                  prod *= M[i][j % m]
                  #print  i, j%m,   M[i][j%m], prod
             det += prod
 
      for gap  in range(m):
              prod = 1.0
              for i in reversed(range(m)):
                   j = m - 1 - i - gap 
                   prod *= M[i][j % m]
                   #print  i, j%m,   M[i][j%m], prod
              det -= prod
      return det
 
if __name__ == "__main__":
    M =  [ [1,2,3],[4,6,5],[9,8,7]]
    print "input matrix:",  M
    print sarrus(M)

When the above code is run, it returns -30, which is correct.

I read this from a FB (FaceBook) friend's wall page. The image of a dead woman with blood on her face seemed to lend an air of credibility to the story.

Please read if you eat shrimps - Very Educative:
A woman suddenly died unexpectedly with signs of bleeding from her ears, nose, mouth & eyes.
After a preliminary autopsy it was diagnosed that death was due to arsenic poisoning.

Where did the arsenic come from?

The police launched an in-depth and extensive investigation. A medical school professor was invited to come to solve the case.
The professor carefully looked at the contents. In less than half an hour, the mystery was solved.
The professor said: 'The deceased did not commit suicide and neither was she murdered, she died of accidental death due to ignorance!'
Everyone was puzzled, why accidental death?
The professor said: 'The arsenic was produced in the stomach of the deceased.' The deceased used to take 'Vitamin C' everyday, which in itself is not a problem.
The problem was that she ate a large portion of shrimp/prawn during dinner. Eating shrimp/prawn is not the problem that's why nothing happened to her family even though they had the same shrimp/prawn. However at the same time the deceased also took 'vitamin C', that is where the problem was!

Researchers at the University of Chicago in the United States , found through experiments, food such as soft-shell contain much higher concentration of five
potassium arsenic compounds.

Such fresh food by itself has no toxic effects on the human body.

However, in taking 'vitamin C', chemical reaction occurs and the original non-toxic elements change to toxic elements.

Arsenic poisoning has magma role and can cause paralysis to the small blood vessels. Therefore, a person who dies of arsenic poisoning will show signs of bleeding from the ears, nose, mouth & eyes. Thus as a precautionary measure,

DO NOT eat shrimp/prawn when taking 'vitamin C'.

After reading this; please do not be stingy.
Its our duty to take care of our friends
Re-share to your friends...

Not references were given to news items nor even to published reputable medical studies. We did a search on images.google.com and we found that the dead woman in the photo was Neda Agha-Soltan who died in a presidential protest in Iran. From these considerations, we conclude this is a hoax. You are warned!

Let us give justice to Ms. Neda whose photo in happier times make us shudder what positive things could have been in store for this brave young woman.

Images courtesy of Facebook and BBC news.

Further reading. Snopes tell us that this was spread as an email in early 2001!

Subdue the Earth and REPLENISH it. That is the command given to Man by the creator GOD aside from loving and obeying HIM. Yet God knew man will fail IF they disobey, and the end result was Adam and Eve were forced out of the Garden of Eden.

Here is a disturbing movie on the effects of Man's unthinking of treating the ocean as one big DUMP. Birds ingest a lot of plastics and these kill them and in fact may make them extinct in a few years time! It is too late!

Thanks to Ella for the link.