# simon mccallum

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### TensorFlow Tutorial For Beginners

<i>Originally published at</i> <i>https://www.datacamp.com/community/tutorials/tensorflow-tutorial</i><p>Deep learning is a subfield of machine learning that is a set …

Deep Learning### Surreal number

For faster navigation, this Iframe is preloading the Wikiwand page for <b>Surreal number</b>.<p>From Wikipedia, the free encyclopedia<p>{{bottomLinkPreText}} …

Mathematics### Differential geometry

<b>Differential geometry</b>, branch of mathematics that studies the geometry of curves, surfaces, and manifolds (the higher-dimensional analogs of …

Mathematics### Highest Voted 'combinatorics' Questions

<b>207</b><p>votes<p><b>4</b>answers<p>9k views<p>The goal of the four fours puzzle is to represent each natural number using four copies of the digit $4$ and common …

Mathematics### How to Add an AirDrop Shortcut to Your Mac's Dock

Apple's AirDrop feature lets you wirelessly send and receive files between nearby Macs as well as to and from local iOS devices. It's usually accessed from the sidebar of an open Finder Window (or using the <b>Command + Shift + R</b> keyboard shortcut within Finder), but here we're going to share with you …

Operating Systems### Octopuses are officially the weirdest animals on Earth

Octopuses have blue blood, can change colors, and regrow their tentacles. But what really makes them stand out is even weirder: they can edit their own RNA. Following is a transcript of the video.<p>Octopuses are the weirdest animal on earth. I know what you're thinking... Is it because they have …

Biology### Making a career out of the chain rule

When I was a teenager, my uncle gave me a calculus book and told me that mastering calculus was the most important thing I could do for starting out …

### On David Foster Wallace, Georg Cantor, and Infinity

Few ideas have had a racier history than the idea of infinity. It arose amid ancient paradoxes, proceeded to baffle philosophers for a couple of …

### 20+ Times People Found Some Truly Perfect Handwriting Examples That Were Too Good Not To Share (New Pics)

One of the biggest casualties of the digital age has been the fine skill of handwriting, and the opportunities to show off one's artsy and …

Typography### How much the average person in 40 different countries takes home after taxes

The salary you negotiate isn't the amount you end up receiving in your paychecks. The primary reason: taxes.<p>It is well known that every country has a different corporate tax rate, but each one also has different tax rates for individuals. CapRelo published a study on tax rates and take home …

European Travel### The 18th-Century Lady Mathematician Who Loved Calculus and God

The witch of Agnesi, you may be disappointed to know, is a curve that math students generally learn about in calculus class. It doesn’t look much …

### Iran’s Regime Violently Expelled Its Jews. Why Are American Jews Giving Them A Pass?

President Trump announced the U.S. withdrawal from the Iran Deal on May 8. The following day marked a very painful anniversary for many Iranian Jews …

### Ask Ethan: How Many Galaxies Have Already Disappeared From Our Perspective?

One of the biggest surprises for humanity about the Universe is that space isn’t just expanding, but that expansion is accelerating. The farther a distant galaxy is from us, the faster it appears to recede away, and that recession speed appears to speed up over time. At some point, you’d imagine, …

Galaxies### Computing SVD and pseudoinverse

In a nutshell, given the singular decomposition of a matrix <i>A</i>,the Moore-Penrose pseudoinverse is given byThis post will explain what the terms above …

### Take Back Control of Your Wi-Fi Connection with This Incredible Tool

Netspot Pro helps you analyze and optimize your wireless network like never before.<p>Wireless internet is one of the great inventions of our time. It’s …

### 3 reasons the B-52 bomber will outlive all of us

Do you remember when the defense industry could actually build airplanes? Not just build airplanes, but mass produce them in large numbers?<p>Of course you don't.<p>Over time, military aircraft have become so complicated and defense industry has become so impervious to outside forces that you probably …

### Strogatz, Bethe research papers named to top-50 list

The journal Physical Review, founded at Cornell, is celebrating its 125-year anniversary and has cited 50 "milestone" research papers.

### Uprooting of Jews from Arab countries, an answer to modern antisemitism

To be able to reach a peaceful solution, the forced migration of Jews from Arab countries must be acknowledged as one of the tragedies of this long …

### Could Iran and Israel fight on the battlefield?

SYRIA-ISRAEL BORDER, Golan Heights – Ever since the Iranian Islamic Revolution in 1979, Iran and Israel have been fighting each other in the shadows …

### A graphene roll-out

MIT engineers have developed a continuous manufacturing process that produces long strips of high-quality graphene.The team’s results are the first …

### Illustrative Mathematics

Solutions<p>Solution: 1 Geometric Visualization<p>There are two vital aspects to this task: first visualizing the intersections of spheres and then working …

### Is this the solution to Birmingham's greatest medical mystery?

A Birmingham Mail investigation into the death of smallpox victim Janet Parker suggests she may not have died in the way investigators thought most …

### Inventing the Pogrom: Assigning Meaning to the Kishinev Massacre

STEVEN J. ZIPPERSTEIN’S <i>POGROM: Kishinev and the Tilt of History</i> is, among many other things, the story of how the word <i>pogrom</i> became one of the …

### Explainer: CRISPR Gene Editing and How It Works

CRISPR harnesses the natural defence mechanisms of some bacteria to cut human DNA strands. Then the DNA strand either heals itself or we inject new …

### Birds Can See Earth's Magnetic Fields, And We Finally Know How That's Possible

Whoa, evolution. Just... whoa.<p>The mystery behind how birds navigate might finally be solved: it's not the iron in their beaks providing a magnetic …

Biology### Use Wolfram Mathematica on Raspberry Pi

Many professionals who work with numbers pay hundreds of pounds to purchase Mathematica. It’s an extremely powerful mathematics and data processing …

### Nature’s Liquid Crystals

Known for their use in flat screens, liquid crystals are also naturally present in both plants and animals. An essential tool in fundamental …

### Robert Langlands, Mathematical Visionary, Wins the Abel Prize

Generations of researchers have pursued his “Langlands program,” which seeks to create a grand unified theory of mathematics.<p>Robert Langlands, who …

### 18.785 Number Theory I (MIT)

This is the first semester of a one year graduate course in number theory covering standard topics in algebraic and analytic number theory. At …

### Textbook on number theory acclaimed for its novel approach

It's not often that a mathematics textbook is described as "gorgeous" or "a work of practical art." But <i>An Illustrated Theory of Numbers</i> by Martin …

Mathematics