Shadow Blog

About Math

2020-03-14T00:00:00+00:00

Some inline Latex: $a^2 + b^2 = c^2$

When $a \ne 0$, there are two solutions to (ax^2 + bx + c = 0) and they are $x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$

Display equation:

$\int e^{-kx} \, dx = -\frac{1}{k} e^{-kx}$

Butterfly

2020-03-14T00:00:00+00:00

Butterfly animation. Butterfly animation.

Giphy

2020-03-14T00:00:00+00:00

Giphy animation.

I love coding!

2020-03-10T00:00:00+00:00

State of Highlighting Code in Jekyll I appear to be able to highlight syntax in Markdown files in two different ways using Jekyll.

This `is not a code` span!

\         backslash
.         period
*         asterisk
_         underscore
+         plus
-         minus
=         equal sign
`         back tick
()[]{}<>  left and right parens/brackets/braces/angle brackets
#         hash
!         bang
<<        left guillemet
>>        right guillemet
:         colon
|         pipe
"         double quote
'         single quote
$         dollar sign

def print_hi(name)
  puts "Hi, #{name}"
end
print_hi('Tom')
#=> prints 'Hi, Tom' to STDOUT.

1
2
3
4
5
def print_hi(name)
  puts "Hi, #{name}"
end
print_hi('Tom')
#=> prints 'Hi, Tom' to STDOUT.

def print_hi(name)
  puts "Hi, #{name}"
end
print_hi('Tom')
#=> prints 'Hi, Tom' to STDOUT.

var name = "Alice";
var function = alertMessage(){
  alert("Hello, " + name);
  var name = "Bob";
};
alertMessage();

<pre>
```javascript
 var hoisting = "global variable";
    (function(){
        confirm("\"" + hoisting + "\"" + " click OK" );
        var hoisting = "local variable";
        alert(hoisting);
    })(); //self-executing function
```
</pre>

#container {
    float: left;
    margin: 0 -240px 0 0;
    width: 100%;
}

{% for post in site.posts %}
{% if post.categories contains '<categoryname>' %}
    <h2>
      <a href="{{ post.url }}">{{ post.title }}</a>
    </h2>
{% endif %}
{% endfor %}

```javascript
 var hoisting = "global variable";
    (function(){
        confirm("\"" + hoisting + "\"" + " click OK" );
        var hoisting = "local variable";
        alert(hoisting);
    })(); //self-executing function
```

center_lower_48 = [39.833333, -98.583333]
map = folium.Map(location = center_lower_48,
                 zoom_start = 4,
                 control_scale = True,
                 tiles = 'Stamen Terrain')

#shell $ pip install jupyter #

$ pip install jupyter

def cat
  puts 'I love cats'
end

def cat puts ‘I love cats’ end

The code above yields:

<div class="language-shell highlighter-rouge">
  <div class="highlight">
    <pre class="highlight">
      <code>
        <span class="nv">$ </span>pip install jupyter
      </code>
    </pre>
  </div>
</div>

However, if I use Liquid syntax in my markdown file, the output changes.

$ pip install jupyter

The code above renders to the result below.

    
      $ pip install jupyter

Please note that this difference does not appear to be documented, and is quite surprising to a Jekyll beginner. I note that in some other issues Jekyll-users appear surprised to discover that highlighting with fenced blocks is an option, because the documentation refers only to the second method.

Note that some behavior changes if I edit my _config.yml and set highlighter to none

markdown: kramdown highlighter: none # new addition The first code snippet (using Markdown delimiters) now yields the following (note missing div tags and syntax highlighting).

  
    $ pip install jupyter

The second snippet now yields the code below (syntax highlighting removed, but figure tags remains).

    
      $ pip install jupyter

I love Math!

2020-03-10T00:00:00+00:00

Some inline Latex: $a^2 + b^2 = c^2$

When $a \ne 0$, there are two solutions to (ax^2 + bx + c = 0) and they are $x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$

Display equation:

$\int e^{-kx} \, dx = -\frac{1}{k} e^{-kx}$

These render differently. For example, type $\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$ to show (which is inline mode) or type $\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$ to show

$\begin{align*} & \phi(x,y) = \phi \left(\sum_{i=1}^n x_ie_i, \sum_{j=1}^n y_je_j \right) = \sum_{i=1}^n \sum_{j=1}^n x_i y_j \phi(e_i, e_j) = \\ & (x_1, \ldots, x_n) \left( \begin{array}{ccc} \phi(e_1, e_1) & \cdots & \phi(e_1, e_n) \\ \vdots & \ddots & \vdots \\ \phi(e_n, e_1) & \cdots & \phi(e_n, e_n) \end{array} \right) \left( \begin{array}{c} y_1 \\ \vdots \\ y_n \end{array} \right) \end{align*}$

I love pizza!

2020-03-10T00:00:00+00:00

Hello Test

Nine

Data Wrangling Project

2018-01-28T00:00:00+00:00

H1 Heading

H2 Heading

H3 Heading

Here’s some basic text.

And here’s some italics

Here’s some bold text.

What about a link?

Here’s a bulleted list:

First item
Second item
Third item

Here’s a numbered list:

First
Second
Third

Python code block:

    import numpy as np

    def test_function(x, y):
      z = np.sum(x,y)
      return z

R code block:

library(tidyverse)
df <- read_csv("some_file.csv")
head(df)

Here’s some inline code x+y.

Here’s an image:

Here’s another image using Kramdown:

Here’s some math:

$z=x+y$

You can also put it inline $z=x+y$