Walking Randomly

Hi Mike

Many thanks for your post.
Only a few of my posts are in English.
Now I have greater responsabilities towards you and your readers.

Best wishes,
Américo

Hi Mike

You can try this site

http://www.linguasnet.com/Index_pt.php :)

Best Wishes

Américo

Just to say I’ve posted Problem of the month #2, an easier one, I think.

I’ve just posted Pierre’s Bernard solution here
http://problemasteoremas.wordpress.com/2009/07/20/problema-do-mes-problem-of-the-month-resolucao-do-problema-1-solution-of-problem-1/

My Problem of the month #2 was posted today here

http://problemasteoremas.wordpress.com/2010/01/06/problema-do-mes-problem-of-the-month-3/

I invite you and your readers to submit a solution.

All my Problems of the Month have been collected in this page

http://problemasteoremas.wordpress.com/problema-do-mes-problem-of-the-month/

Thanks, Mike!

This is my first Python script to calculate and type the Easter Sunday date of a given year:

http://problemasteoremas.wordpress.com/2010/02/17/script-em-python-do-algoritmo-de-o%e2%80%99beirne-para-calcular-o-dia-e-o-mes-do-domingo-de-pascoa/

I’ve defined the easter(x) function.

Here is a copy (without identions, although important as they are! I am going to try some )

Exemples of easter():

>>> easter(2010)
In 2010 the Easter Sunday is on April 4

>>> easter(2011)
In 2011 the Easter Sunday is on April 24

def easter(x): # Python script that defines the easter(x)
# function, where x is the year.
#
# Based on the 10 step O’Beirne’s algorithm to
# compute the date of Easter Sunday of a given
# year.(Computes and writes the day and the month)
#
#
b = x / 100
c = x – 100 * b
quotient = (5 * b + c) / 19
a = 5 * b + c – 19 * quotient
d = (3 * (b + 25)) / 4
e = 3 * (b + 25) – 4 * d
g = (8 * (b + 11)) / 25
quotient = (19 * a + d – g) / 30
h = 19 * a + d – g – 30 * quotient
m = (a + 11 * h) / 319
j = (60 * (5 – e) + c) / 4
k = 60 * (5 – e) + c – 4 * j
quotient = (2 * j – k – h + m) / 7
l = 2 * j – k – h + m – 7 * quotient
n = (h – m + l + 110) / 30 # n is the month(numerical value)
q = h – m + l + 110 – 30 * n
quotient = (q + 5 – n) / 32
p = q + 5 – n # p is the day
if n == 3:
    N = ‘March’ # N is the month name
else:
    N = ‘April’
if quotient != 0:
    print ‘error’
else:
    print ‘In’, x, ‘the Easter Sunday is on’, N,

Question: how can one plot a function in Python? Is it possible to print it on the computer monitor? or does one need to have a plotter?

I have a second script to compute all the primes up to a given N. It generates two lists and outputs the primes. I a modified a script that evaluates and plots an extremely rapid oscillating function, written by a computer scientist who is attacking the Erdős Discrepancy Problem (EDP) together with other mathematicians, computation scientists and theoretics. The algorithm itself was a Gowers’ idea. All this is taking place on the Professor Gowers’s Weblog (http://gowers.wordpress.com/), since mid January.

I downloaded Python to my desk computer a few weeks ago and edited the scripts I mentioned in the IDLE environmental that came together.

Best Wishes too,
Américo

Hi Mike!

Thanks for your information, since you are a Python expert.

Best wishes,

Américo