intothecontinuum:


Mathematica code:
G[A_, B_, s_, N_, T_, t_, pr_, th_] := Graphics[  {EdgeForm[{AbsoluteThickness[th], Black}], FaceForm[White],    Polygon[    Table[     {{0, 0},      {(Cos[4a+s*t]+Sin[4a+s*t])Cos[a+s*t], (Cos[4a+s*t]+Sin[4a+s*t]) Sin[a+s*t]},      {(Cos[4a+s+s*t]+Sin[4a+s+s*t])Cos[a+s+s*t], (Cos[4a+s+s*t]+Sin[4a+s+s*t]) Sin[a+s+s*t]}},     {a, B + T, A + T, 2 Pi/N}]]},   PlotRange -> pr, ImageSize -> 500]Manipulate[G[2Pi, 0, .75, 200, T, 0, 1.5, .3],{T,0,2PI}]

intothecontinuum:

Mathematica code:


G[A_, B_, s_, N_, T_, t_, pr_, th_] :=
Graphics[
{EdgeForm[{AbsoluteThickness[th], Black}], FaceForm[White],
Polygon[
Table[
{{0, 0},
{(Cos[4a+s*t]+Sin[4a+s*t])Cos[a+s*t], (Cos[4a+s*t]+Sin[4a+s*t]) Sin[a+s*t]},
{(Cos[4a+s+s*t]+Sin[4a+s+s*t])Cos[a+s+s*t], (Cos[4a+s+s*t]+Sin[4a+s+s*t]) Sin[a+s+s*t]}},
{a, B + T, A + T, 2 Pi/N}]]},
PlotRange -> pr, ImageSize -> 500]

Manipulate[
G[2Pi, 0, .75, 200, T, 0, 1.5, .3],
{T,0,2PI}]

(via logicianmagician)

Tags: graphic math

"Romantica Mathematica"

skid-marq:

empty spaces
between two points and such
converged traces
intimately close yet do not touch

oscillé, oscillé …
suprema
infima

empty faces
although two bodies touch
diverged complacence
infinitely verbose yet do not much

oscillé, oscillé …
suprema
infima

in extremis
y deprimida

(via imathematicus)

Tags: math quote Poetry

benreddy:

Some nice pictures to accompany the sentences and equations I’ve been working my way through over the last week or so. (From Pressley’s Elementary Differential Geometry).

Cool! Are you taking a course on it?

(via imathematicus)

stormbear:

How to become a Mathematician
These are a collection of the most sophisticated and incredible links that we have collected from different sources all over the web. If you study these important links properly that include pure mathematics, You can become a really great Mathematician. For all those who had been searching for important and great lectures and links on Mathematics, Science Panorama brings out to you all these awesome stuffs after rigorous scouring of the web. Feel Free to learn and share! :)
http://tgd.wippiespace.com/public_html/tgdclass/tgdclass.html#rgflow
http://www.rzuser.uni-heidelberg.de/~hb3/notes.html
http://maths.mq.edu.au/~wchen/ln.html
http://ocw.mit.edu/courses/mathematics/
http://www.math.cmu.edu/~ploh/olympiad.shtml
http://www.math.tifr.res.in/~publ/ln/index.html
http://www.scribd.com/doc/39062851/9814293547-Olympiad-Courses-1
http://olympiads.win.tue.nl/imo/
http://www.paultaylor.eu/tripos/
http://www.math.wisc.edu/~angenent/Free-Lecture-Notes/
http://math.mit.edu/classes/18.095/
http://www.math.psu.edu/simpson/courses/
http://www.mathematicsgre.com/viewtopic.php?f=1&t=842
http://www.math.ucla.edu/~tao/tags.html
http://educhoices.org/articles/Applied_Mathematics_OpenCourseWare_MITs_Free_Online_Undergraduate_Course_on_Applied_Mathematics.html
http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx
http://www.pages.drexel.edu/~gln22/Lecture%20Notes%20on%20Calculus.htm
http://ocw.mit.edu/resources/res-18-001-calculus-online-textbook-spring-2005/textbook/
http://ocw.mit.edu/courses/mathematics/18-022-calculus-of-several-variables-fall-2010/
http://euclid.ucc.ie/pages/staff/Mckay/calculus/Rossi/
http://www.cacr.caltech.edu/~sean/applied_math.pdf
http://www.understandingcalculus.com/
http://www.math.wisc.edu/~keisler/calc.html
http://www.lightandmatter.com/calc/calc.pdf
http://arxiv.org/abs/1205.0174
http://www.math.miami.edu/~dsolis/notes.html
http://www.maths.cam.ac.uk/studentreps/res/notes.html
http://www.damtp.cam.ac.uk/user/examples/
http://www.puremaths.info/video-lectures-in-mathematics/
http://freescienceonline.blogspot.in/2006/06/free-mathematics-video-courses.html
http://freescienceonline.blogspot.in/2008/10/more-free-mathematics-video-courses.html
http://freescienceonline.blogspot.in/2009/10/mathematics-video-lectures.html
http://www.extension.harvard.edu/open-learning-initiative/abstract-algebra
http://archim.org.uk/index.php
http://press.princeton.edu/video/banner/
http://hbpms.blogspot.in/
http://bengtmn.wordpress.com/?blogsub=confirming#subscribe-blog
http://www.nptel.iitm.ac.in/courses.php?disciplineId=115
http://www.math.harvard.edu/~mazur/
http://www.e-booksdirectory.com/listing.php?category=32
http://www.maths.ox.ac.uk/courses/material/
http://v5o5jotqkgfu3btr91t7w5fhzedjaoaz8igl.unbsj.ca/~tim/UWOnotes/notes.htm
http://maths.dur.ac.uk/pure/preprint.html
http://www.e-booksdirectory.com/mathematics.php
http://www.e-booksdirectory.com/listing.php?category=3
http://web.itu.edu.tr/~delidumanc/math.html
http://www.learnerstv.com/
http://www.physicsforums.com/showthread.php?t=554150
http://john.fremlin.de/schoolwork/graph/index.html
http://people.uncw.edu/hermanr/phy311/MathPhysBook/index.htm 

stormbear:

How to become a Mathematician

These are a collection of the most sophisticated and incredible links that we have collected from different sources all over the web. If you study these important links properly that include pure mathematics, You can become a really great Mathematician. For all those who had been searching for important and great lectures and links on Mathematics, Science Panorama brings out to you all these awesome stuffs after rigorous scouring of the web. Feel Free to learn and share! :)

  1. http://tgd.wippiespace.com/public_html/tgdclass/tgdclass.html#rgflow
  2. http://www.rzuser.uni-heidelberg.de/~hb3/notes.html
  3. http://maths.mq.edu.au/~wchen/ln.html
  4. http://ocw.mit.edu/courses/mathematics/
  5. http://www.math.cmu.edu/~ploh/olympiad.shtml
  6. http://www.math.tifr.res.in/~publ/ln/index.html
  7. http://www.scribd.com/doc/39062851/9814293547-Olympiad-Courses-1
  8. http://olympiads.win.tue.nl/imo/
  9. http://www.paultaylor.eu/tripos/
  10. http://www.math.wisc.edu/~angenent/Free-Lecture-Notes/
  11. http://math.mit.edu/classes/18.095/
  12. http://www.math.psu.edu/simpson/courses/
  13. http://www.mathematicsgre.com/viewtopic.php?f=1&t=842
  14. http://www.math.ucla.edu/~tao/tags.html
  15. http://educhoices.org/articles/Applied_Mathematics_OpenCourseWare_MITs_Free_Online_Undergraduate_Course_on_Applied_Mathematics.html
  16. http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx
  17. http://www.pages.drexel.edu/~gln22/Lecture%20Notes%20on%20Calculus.htm
  18. http://ocw.mit.edu/resources/res-18-001-calculus-online-textbook-spring-2005/textbook/
  19. http://ocw.mit.edu/courses/mathematics/18-022-calculus-of-several-variables-fall-2010/
  20. http://euclid.ucc.ie/pages/staff/Mckay/calculus/Rossi/
  21. http://www.cacr.caltech.edu/~sean/applied_math.pdf
  22. http://www.understandingcalculus.com/
  23. http://www.math.wisc.edu/~keisler/calc.html
  24. http://www.lightandmatter.com/calc/calc.pdf
  25. http://arxiv.org/abs/1205.0174
  26. http://www.math.miami.edu/~dsolis/notes.html
  27. http://www.maths.cam.ac.uk/studentreps/res/notes.html
  28. http://www.damtp.cam.ac.uk/user/examples/
  29. http://www.puremaths.info/video-lectures-in-mathematics/
  30. http://freescienceonline.blogspot.in/2006/06/free-mathematics-video-courses.html
  31. http://freescienceonline.blogspot.in/2008/10/more-free-mathematics-video-courses.html
  32. http://freescienceonline.blogspot.in/2009/10/mathematics-video-lectures.html
  33. http://www.extension.harvard.edu/open-learning-initiative/abstract-algebra
  34. http://archim.org.uk/index.php
  35. http://press.princeton.edu/video/banner/
  36. http://hbpms.blogspot.in/
  37. http://bengtmn.wordpress.com/?blogsub=confirming#subscribe-blog
  38. http://www.nptel.iitm.ac.in/courses.php?disciplineId=115
  39. http://www.math.harvard.edu/~mazur/
  40. http://www.e-booksdirectory.com/listing.php?category=32
  41. http://www.maths.ox.ac.uk/courses/material/
  42. http://v5o5jotqkgfu3btr91t7w5fhzedjaoaz8igl.unbsj.ca/~tim/UWOnotes/notes.htm
  43. http://maths.dur.ac.uk/pure/preprint.html
  44. http://www.e-booksdirectory.com/mathematics.php
  45. http://www.e-booksdirectory.com/listing.php?category=3
  46. http://web.itu.edu.tr/~delidumanc/math.html
  47. http://www.learnerstv.com/
  48. http://www.physicsforums.com/showthread.php?t=554150
  49. http://john.fremlin.de/schoolwork/graph/index.html
  50. http://people.uncw.edu/hermanr/phy311/MathPhysBook/index.htm 

(via mathematica)

Tags: math links

ileolai:

guardiancomment:

Chelsea Welch, the US waitress who was fired after she posted a picture of a tip receipt on Reddit, wrote for us:

I was a waitress at Applebee’s restaurant in Saint Louis. I was fired Wednesday for posting a picture on Reddit.com of a note a customer left on a bill. I posted it on the web as a light-hearted joke.
This didn’t even happen at my table. The note was left for another server, who allowed me to take a picture of it at the end of the night.

Someone had scribbled on the receipt, “I give God 10%. Why do you get 18?”

I assumed the customer’s signature was illegible, but I quickly started receiving messages containing Facebook profile links and websites, asking me to confirm the identity of the customer. I refused to confirm any of them, and all were incorrect.
I worked with the Reddit moderators to remove any personal information. I wanted to protect the identity of both my fellow server and the customer. I had no intention of starting a witch-hunt or hurting anyone.
Now I’ve been fired.
The person who wrote the note came across an article about it, called the Applebee’s location, and demanded everyone be fired — me, the server who allowed me to take the picture, the manager on duty at the time, the manager not on duty at the time, everyone. It seems I was fired not because Applebee’s was represented poorly, not because I did anything illegal or against company policy, but because I embarrassed this person.
In light of the situation, I would like to make a statement on behalf of wait staff everywhere: We make $3.50 an hour. Most of my paychecks are less than pocket change because I have to pay taxes on the tips I make.
After sharing my tips with hosts, bussers, and bartenders, I make less than $9 an hour on average, before taxes. I am expected to skip bathroom breaks if we are busy. I go hungry all day if I have several busy tables to work. I am expected to work until 1:30am and then come in again at 10:30am to open the restaurant.
I have worked 12-hour double shifts without a chance to even sit down. I am expected to portray a canned personality that has been found to be least offensive to the greatest amount of people. And I am expected to do all of this, every day, and receive change, or even nothing, in return. After all that, I can be fired for “embarrassing” someone, who directly insults his or her server on religious grounds.
In this economy, $3.50 an hour doesn’t cut it. I can’t pay half my bills. Like many, I would love to see a reasonable, non-tip-dependent wage system for service workers like they have in other countries. But the system being flawed is not an excuse for not paying for services rendered.
I need tips to pay my bills. All waiters do. We spend an hour or more of our time befriending you, making you laugh, getting to know you, and making your dining experience the best it can be. We work hard. We care. We deserve to be paid for that.

I am trying to stand up for all of us who work for just a few dollars an hour at places like Applebee’s. Whether a chain steakhouse or a black-tie establishment, tipping is not optional. It is how we get paid.

I posted a picture to make people laugh, but now I want to make a serious point: Things like this happen to servers all the time. People seem to think that the easiest way to save money on a night out is to skip the tip.
I can’t understand why I was fired over this. I was well liked and respected at Applebee’s. My sales were high, my managers had no problems with me, and I was even hoping to move up to management soon. When I posted this, I didn’t represent Applebee’s in a bad light. In fact, I didn’t represent them at all.
I did my best to protect the identity of all parties involved. I didn’t break any specific guidelines in the company handbook – I checked. But because this person got embarrassed that their selfishness was made public, Applebee’s has made it clear that they would rather lose a dedicated employee than an angry customer. That’s a policy I can’t understand.
I am equally baffled about how a religious tithe is in any way related to paying for services at a restaurant. I can understand why someone could be upset with an automatic gratuity. However, it’s a plainly stated Applebee’s policy that a tip is added automatically for parties over eight like the one this customer was part of. I cannot control that kind of tip; it’s done by the computer that the orders are put into. I’ve been stiffed on tips before, but this is the first time I’ve seen the “Big Man” used as reasoning.
Obviously the person who wrote this note wanted it seen by someone. It’s strange that now that the audience is wider than just the server, the person is ashamed.
I have no agenda here. I seek no revenge against the note writer. I have no interest in exposing their identity, and, at this point, I’m not even sure I want my job back. I was just trying to make a joke, but I came home unemployed.
I’ve been waiting tables to save up some money so I could finally go to college, so I could get an education that would qualify me for a job that doesn’t force me to sell my personality for pocket change.


I’m pretty sure “vengefully get people fired if they embarrass you” is not in God’s handbook 

ileolai:

guardiancomment:

Chelsea Welch, the US waitress who was fired after she posted a picture of a tip receipt on Reddit, wrote for us:

I was a waitress at Applebee’s restaurant in Saint Louis. I was fired Wednesday for posting a picture on Reddit.com of a note a customer left on a bill. I posted it on the web as a light-hearted joke.

This didn’t even happen at my table. The note was left for another server, who allowed me to take a picture of it at the end of the night.

Someone had scribbled on the receipt, “I give God 10%. Why do you get 18?”

I assumed the customer’s signature was illegible, but I quickly started receiving messages containing Facebook profile links and websites, asking me to confirm the identity of the customer. I refused to confirm any of them, and all were incorrect.

I worked with the Reddit moderators to remove any personal information. I wanted to protect the identity of both my fellow server and the customer. I had no intention of starting a witch-hunt or hurting anyone.

Now I’ve been fired.

The person who wrote the note came across an article about it, called the Applebee’s location, and demanded everyone be fired — me, the server who allowed me to take the picture, the manager on duty at the time, the manager not on duty at the time, everyone. It seems I was fired not because Applebee’s was represented poorly, not because I did anything illegal or against company policy, but because I embarrassed this person.

In light of the situation, I would like to make a statement on behalf of wait staff everywhere: We make $3.50 an hour. Most of my paychecks are less than pocket change because I have to pay taxes on the tips I make.

After sharing my tips with hosts, bussers, and bartenders, I make less than $9 an hour on average, before taxes. I am expected to skip bathroom breaks if we are busy. I go hungry all day if I have several busy tables to work. I am expected to work until 1:30am and then come in again at 10:30am to open the restaurant.

I have worked 12-hour double shifts without a chance to even sit down. I am expected to portray a canned personality that has been found to be least offensive to the greatest amount of people. And I am expected to do all of this, every day, and receive change, or even nothing, in return. After all that, I can be fired for “embarrassing” someone, who directly insults his or her server on religious grounds.

In this economy, $3.50 an hour doesn’t cut it. I can’t pay half my bills. Like many, I would love to see a reasonable, non-tip-dependent wage system for service workers like they have in other countries. But the system being flawed is not an excuse for not paying for services rendered.

I need tips to pay my bills. All waiters do. We spend an hour or more of our time befriending you, making you laugh, getting to know you, and making your dining experience the best it can be. We work hard. We care. We deserve to be paid for that.

I am trying to stand up for all of us who work for just a few dollars an hour at places like Applebee’s. Whether a chain steakhouse or a black-tie establishment, tipping is not optional. It is how we get paid.

I posted a picture to make people laugh, but now I want to make a serious point: Things like this happen to servers all the time. People seem to think that the easiest way to save money on a night out is to skip the tip.

I can’t understand why I was fired over this. I was well liked and respected at Applebee’s. My sales were high, my managers had no problems with me, and I was even hoping to move up to management soon. When I posted this, I didn’t represent Applebee’s in a bad light. In fact, I didn’t represent them at all.

I did my best to protect the identity of all parties involved. I didn’t break any specific guidelines in the company handbook – I checked. But because this person got embarrassed that their selfishness was made public, Applebee’s has made it clear that they would rather lose a dedicated employee than an angry customer. That’s a policy I can’t understand.

I am equally baffled about how a religious tithe is in any way related to paying for services at a restaurant. I can understand why someone could be upset with an automatic gratuity. However, it’s a plainly stated Applebee’s policy that a tip is added automatically for parties over eight like the one this customer was part of. I cannot control that kind of tip; it’s done by the computer that the orders are put into. I’ve been stiffed on tips before, but this is the first time I’ve seen the “Big Man” used as reasoning.

Obviously the person who wrote this note wanted it seen by someone. It’s strange that now that the audience is wider than just the server, the person is ashamed.

I have no agenda here. I seek no revenge against the note writer. I have no interest in exposing their identity, and, at this point, I’m not even sure I want my job back. I was just trying to make a joke, but I came home unemployed.

I’ve been waiting tables to save up some money so I could finally go to college, so I could get an education that would qualify me for a job that doesn’t force me to sell my personality for pocket change.

I’m pretty sure “vengefully get people fired if they embarrass you” is not in God’s handbook 

(via lvinlin)

yeahwriters:

Paperman

My friend MacKenzie sent this to me today. It is cute. You should watch it.

From the YouTube caption:

Introducing a groundbreaking technique that seamlessly merges computer-generated and hand-drawn animation techniques, first-time director John Kahrs takes the art of animation in a bold new direction with the Oscar®-nominated short, “Paperman.” Using a minimalist black-and-white style, the short follows the story of a lonely young man in mid-century New York City, whose destiny takes an unexpected turn after a chance meeting with a beautiful woman on his morning commute. Convinced the girl of his dreams is gone forever, he gets a second chance when he spots her in a skyscraper window across the avenue from his office. With only his heart, imagination and a stack of papers to get her attention, his efforts are no match for what the fates have in store for him. Created by a small, innovative team working at Walt Disney Animation Studios, “Paperman” pushes the animation medium in an exciting new direction.

(Source: yeahwriters, via burdge)

newaftermath:

avelinetheassassin:

Please Reblog

my sister told me about this yesterday i was fucking in disbelief 

HOAX

newaftermath:

avelinetheassassin:

Please Reblog

my sister told me about this yesterday i was fucking in disbelief 

HOAX

(via aninspirasian)

isomorphismes:

I guess when most people hear the word “logic”, they think of

  • cold shoulders
  • loveless robots
  • a not-quite-rational preoccupation with principles, propositions, facts, and categorical truths over people, feelings, subjective impressions
  • making the wrong decision by thinking in straight…

(Source: isomorphismes)

mansplained:

When I was a senior in high school, I got into MIT, a prestigious engineering school, during early admission and several boys, who also applied to MIT early but were either rejected or deferred, and even some girls, who did not apply, quite profusely told me that “the only reason you got in is…

sarapsys:

posting without a source is unfortunately pretty common, but it doesn’t have to be.  with a few minutes of hunting, you can make sure the artists you like get credit for their work! :)  hope this is helpful.

(via lvinlin)