Creating Slides
===============
We can mark a notebook and then create slides from that notebook. For
example, here is the generate
`slides `__
from the markdown `source
file `__.
Let explain how to do it by the following example. It’s a markdown file
with marks to generate slides.
.. code:: md
# Data Manipulation
## Getting Started
To start, we can use `arange` to create a row vector `x`
containing the first 12 integers starting with 0,
though they are created as floats by default.
A tensor represents a (possibly multi-dimensional) array of numerical values. We can access a tensor's *shape*.
```{.python .input}
import numpy as np
x = np.arange(12)
x
```
Many more operations can be applied elementwise,
including unary operators like exponentiation.
```{.python .input}
np.exp(x)
```
Even when shapes differ, we can still perform elementwise operations
by invoking the *broadcasting mechanism*.
```{.python .input}
a = np.arange(3).reshape(3, 1)
b = np.arange(2).reshape(1, 2)
a, b
```
The above code block will generate 2 slides. The first slide contains
the following contents:
.. code:: md
# Data Manipulation
A tensor represents a (possibly multi-dimensional) array of numerical values. We can access a tensor's *shape*.
```{.python .input}
import numpy as np
x = np.arange(12)
x
```
You can see that we automatically copied the level-1 heading and the
code block. In addition, we copied the text between ``and``, while
dropped all others.
The second slide contains the following:
.. code:: md
Many operations can be applied elementwise,
e.g. `exp`
```{.python .input}
np.exp(x)
```
Even when shapes differ, we can still perform elementwise operations
```{.python .input}
a = np.arange(3).reshape(3, 1)
b = np.arange(2).reshape(1, 2)
a, b
```
First you can see is that all text between these three paris (``,``),
(``,``), and
(\```) are kept. Here``\ [``means starting a new slide, while``\ (``means continuing the current slide. (Level-1 heading will start a new slide, so we used``\ (``in the previous block). In addition,``\ ~~\`
means the text will only appear in slides, why not in the normal
notebooks, htmls or pdfs.
Second, we didn’t start a new slide before the last code block,
i.e. there is no level-1 heading and no (``,``) pair, so the last two
code blocks are merged into the same slide.