Sunday, 3 December 2017

Math 101 - Lecture 9 Revision

Maths 101 – Lecture 9 Revision

Supermum x  k for x  S
            And K - x for some x  S and  > 0

Infinum k  x, for all x  S and k +> x, for some x  S and any  > 0.
Eg        1 s1 = { x  Q  x  ½ }
2 s2 = { x  Q  x2 < 2 }
            3 s3 = { ½, 2/3, ¾, ... n/(n + 1), ... }
            4 s4 = { 1, ½, ¼, ... 2-n }

Which sets are bounded? What are the supermum and infinmum?
Solutions
1 Bounded                   Supremum is ½ and is contained in S.
                                    Infinmum is 0 and is contained in S.
2 Boundednote              S2 = { x  Q : - √2 < x √2}
                                    Supremum is √2, note √2 is not in S2
                                    Infinmum is -√2, note √2 is not in S2
3 Bounded                   Supremum is 1, note 1 is not in S3
                                    Infinmum is ½, note ½ is in S3
4 Bounded                   Supremum is 1, note 1 is in S4
                                    Infinmum is 0, note 0 is not in

-//-

Complex numbers
Any equation x2 = a, a  R
Cannot be solved for x  R, if a < 0
Extend R so that x2 = -1 has a solution
Yes can solve it in C (Complex numbers)

C is R with an element I = √-1 (and its multiples etc)
Note R ⸦ C
Any complex number z  C, can be put into the form z = a +ib; a, b  R
a = Real part of z  = a + ib, Re(z) = a
b = Imaginary part of z, a + ib, Im(z) = b
eg 2 – 3i  C
Re(2-3i) = 2
Im(2-3i) = -3
Addition of elements C
Eg (2-3i) + (1+i) = 3 – 2i
Note: Re(z1 + z2) = x1 + x2
Im (z1 + z2) = y1 + y2
Multiplication
Eg (2 – 3i)(1 + i)         = 2 + 2i – 3i – 3i2
                                    = 2 – i – 3i2, but i2 =  -1
                                    = 2 – i – 3 – 1
                                    = 5 – i
General           z1 = x1 + iy1
                        Z2 = x2 + iy2

z1z2 = (x1 + iy1)( x2 + iy2)       = x1x2 + ix1y2 + iy1x2 + i2y1y2
                                                = x1x2 – y1y2 + i(x1y2 + x2y1)
(a)   (2 + 3i)(10 – i)            = 20 – 2i + 30i – 3i2
= 23 + 28i
(b)   (1 + i)2             = (1 + i)(1 = i)             (c) (√2 - i)2      = (√2)2 + (-i)2 - 2√2i
= 1 + i + i + i2                                     = 2 – 1 - 2√2i
= 2i                                                      = 1 - 2√2i

(d) i3 = i2i = -i
(e) i4 = (i2) = (-1)2 = i
(f) i5 = i ,




Molluscs

https://www.nature.com/articles/ngeo1635: Extensive dissolution of live pteropods in the Southern Ocean | Nature Geoscience
https://news.nationalgeographic.com/news/2011/04/110414-eyes-rock-crystal-mineral-chiton-mollusk-vision-animals-science/: Eyes Made of Rock Really Can See, Study Says
https://www.nationalgeographic.com/animals/invertebrates/g/giant-squid/: Giant Squid | National Geographic
https://en.wikipedia.org/wiki/Glaucus_atlanticus: Glaucus atlanticus - Wikipedia
https://en.wikipedia.org/wiki/Janthina_janthina: Janthina janthina - Wikipedia, the free encyclopedia
http://www.scientificamerican.com/podcast/episode/octopus-skin-senses-light-no-eyes-or-brain-needed/: Octopus Skin Senses Light, No Eyes or Brain Needed - Scientific American


Saturday, 2 December 2017

Church notes - 3rd December 2017

1 Chronicles 16:23 -27

Psalm 42
Big Questions - The Psalmist is distressed
vs 2, 3
What is going on?
Not questions of disrespect
Questions of genuine confusion
Deep down God hasn't forgotten him, it just feels like it.
- Look at the world today!
- Despair from grief
- Relationship breakdown
The world tries to get answers
- Despair
- - distract yourself!
- - give up!
Very short sighted answers
God does care
He is interested in all the big and small things in your life.

Three actions
Remember
The presence and faithfulness of God.
vs 4
God was present in the past. He is present in the here and now.
vs 6 - 8
Painting a picture of his life.
- Feeling like he's drowning?
Feelings - like their's no hope.
Knowledge of the truth
- Remembering God's Character and Actions

Preach
Preaching to yourself God's truth
Battle between the mind and spirit.
Don't let the Devil infiltrate your feelings
We need to be waiting patiently upon God's timing.

Isaiah 40:31

Not a peaceful Psalm, a desperate situation
We need to see our need for Him as a necessity.
- An Instinct

Jonathan Edwards - "The Enjoyment of God is the only happyness with which our souls are satisfied."

vs 11


Friday, 1 December 2017

Thor (2011) rating

Thor
8.5


November 2017 Writings Overall List

November Writings 2017























Overall Total: 7783



27th - 29th November Writings

 27th - 29th

Excerpt from: Adventures in Armidale – Armidale at night
Daniel and Tia emerged from one of the Block 1 upstairs balconies onto the roof of the Kitchen.

Words: 18


Excerpt from: After the Plague in New England v2
27 May 2020
The Constitutional Referendum is held. The current constitution is voted for by 60%.

Words: 16


Excerpt from: Ages of Change – Future Timeline
Wednesday, 20 December 2017
Star Wars: The Last Jedi breaks the record for the most money made in the first week of release.

Thursday, 21 December 2017
Another record broken by The Last Jedi, the most rewatchers.


Friday, 22 December 2017
Disney announces the next Star Wars Anthology film will be released next December.


Saturday, 23 December 2017
The Last Jedi cinema attendance declines.


24 – 29 December 2017
Protests continue in Australia regarding the lack of legalisation of Same Sex Marriage.


Sunday, 24 December 2017
Many Churches in Sydney find themselves the target of pro-Same Sex Marriage protests.


Monday, 25 December 2017
Twice Upon a Time, the latest Christmas Special for Doctor Who airs. Jodie Whitaker makes a great impression during her inaugural scenes as the Thirteenth Doctor.


Tuesday, 26 December 2017
Various Doctor Who fan sites go down from the web traffic related to the previous day's episode.


30 December 2017 – 6 January 2018
Many terrorist attacks are thwarted through the New Year Period.


January 2018
After some delay and protests, Same Sex Marriage is legalised in Australia.


7 January – 13 January 2018
Many LGBTIA activists protest in Canberra...


14 – 20 January 2018
Protests continue in Canberra, while Parliament resumes after the Christmas – New Year break.


Sunday, 14 January 2018
Across the country, various Church congregations pray about the week ahead.


Monday, 15 January 2018
Parliament resumes after the Christmas – New Year break.


Tuesday, 16 January 2018
The House of Representatives revisits the Same Sex Marriage legislation, again.


Wednesday, 17 January 2018
The House of Representatives amends the Same Sex Marriage legislation, including further religious protections.


21 – 27 January 2018
The Federal Parliament finally passes the Same Sex Marriage legislation, with religious protections included.


28 January – 3 February 2018
Two more MPs resign due to being dual citizens.


4 – 10 February 2018
With Same Sex Marriage legalised, Shorten turns his attention to bringing about a Royal Commission into the Banking System.

The Winter Olympics at PyeongChang in South Korea start.


11 – 17 February 2018
The Winter Olympics continue, with many records being broken.


18 – 24 February 2018
As the Winter Olympics come to an end, North Korea increases military activities on their side of the DMZ. Kim Jung-Un continues to goad POTUS Donald Trump...


25 February – 3 March 2018
More build-up to a possible war on the Korean Peninsula occurs. The American Establishment fails at trying to rein in Trump, as much as it has done for the past year.

Words: 423


Excerpt from (Silent) Reverse Map Game: 2017 Edition
1895
Americas
The proportion of Minnesota Norse speakers in Midgard County drops below 69%.
In eastern Minnesota overall, the number drops below 31%.
In Minnesota overall, the number drops below 16%.
Within the US overall (excluding Minnesota) it drops below 2%.


Europe
As England continues to centralise, the Northumberland Assembly is abolished.

The German rebellion continues to grow more serious.


Africa
...


Asia
Australasia
Antipodea

New South Wales
Armidale's population reaches 2800.
Dubbo's population reaches 4250.

Words: 76



Total: 533