dandrake

# Sage has a built-in rref() method for matrices, but sometimes when
# teaching it's nice to get a list of the row operations you would do to
# put the matrix into rref -- or, equivalent, a list of the
# corresponding elementary matrices.
#
# This script contains two functions along those lines:
#
#    rref(): returns a list of elementary matrices that put the matrix into rref
#    rref_steps(): returns a list of strings that describe what row ops to do
#

drvinceknight

# LaTeX Files
*.aux
*.glo
*.idx
*.log
*.toc
*.ist
*.acn
*.acr
*.alg

jasongrout

<!-- put this in the header-->
<script src='http://sagecell.sagemath.org/static/jquery.min.js'/>
<script src='http://sagecell.sagemath.org/static/embedded_sagecell.js'/>
<link href='http://sagecell.sagemath.org/static/sagecell_embed.css' rel='stylesheet' type='text/css'/>

<!-- put this in the body where you want a cell. adjust your inputs, of course. -->
<div class="sage">
<script type="text/x-sage">
1+2
</script></div>

theronhitchman

%%%   This is a cut-and-paste template for a basic short paper in an IBL proof-heavy course.
%%%   The header parts of this document should be left alone. It will ensure that everything
%%%   will compile and all of the formatting will turn out OK.

%%%   Headers -- these give the document its general structure, and tell LaTeX which basic
%%%   functionality to load
\documentclass{amsart}
\usepackage[margin=1in]{geometry}
\usepackage{graphicx}
\usepackage{url}

arvearve

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?