Tools for customized learning|

Interact with a PDF

Read it, mark it up, ask about it

Open a PDF

Drop in a PDF and read it with an assistant beside you. Highlight, draw and leave notes, select any passage to ask about it, then download the marked-up file. The PDF and the chat stay in your browser.

Nova

Markdown editor for STEM

Open the editorHow it works

Turn ordinary markdown with a Python code block into a live, interactive article. Create UIs, interact with LaTeX and show markdown text conditionally.

note.md
# The cardioid
```pygeomatic
n = gm.scalar(6)
nums = gm.linspace(0, n - 1, n)
rad = gm.deg2rad(360 * nums / n)
r = gm.scalar(2)
pts = gm.point(r * gm.cos(rad), r * gm.sin(rad))
d = gm.distance(pts, pts[0])
with group("family"):
    gm.circle(pts, d)
ns = gm.ui.slider(10, 25, 5, 10, label='n')
gm.md(f'{ns}')
```
Every circle {passes through the cusp}(ref:family)
tracing a cardioid.
compile & publish
tinyvolt.com/nova
The cardioid

Every circle passes through the cusp, tracing a cardioid.

n10152025

Learn

Linear Algebra for Programmers

Visualize, interact, internalize

Explore LAFP

Built on top of Geomatic, the engine that also powers Nova, LAfP provides educational content for all levels. Every concept is a live canvas: click through the commands and watch the math respond.

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An immersive platform for All Things Linear Algebra.

Seamless interactivity

On the left (or top for mobile devices) is the vector field of the gradients of the following function:

  • Change to see how it changes the vector field.
  • Type a = \scalar 1.2 in the editor at bottom left and test it out for different values of a yourself.

Insightful visualizations

  • Click the teal text to see different ways to visualize a matrix transform:
    • shows how it transforms a uniform grid.
      • , see where the point lands and where the point lands.
    • shows how it maps points on a circle to points on an ellipse.
  • anything to illustrate the behavior of certain properties over time.

Autograd enabled

  • The of total distance from the origin of each point.
    • , the gradients also update reactively.

Implement your own figures

You can build your own extension and import it here to visualize and interact with it. This is actually how most of the commands you will encounter here have been implemented.

... and much more.