<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Writing on Pine Tree Labs</title><link>https://pinetreelabs.io/posts/</link><description>Recent content in Writing on Pine Tree Labs</description><generator>Hugo</generator><language>en</language><lastBuildDate>Fri, 20 Mar 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://pinetreelabs.io/posts/index.xml" rel="self" type="application/rss+xml"/><item><title>Battery Parameter Estimation</title><link>https://pinetreelabs.io/posts/archimedes-battery-sysid/</link><pubDate>Fri, 20 Mar 2026 00:00:00 +0000</pubDate><guid>https://pinetreelabs.io/posts/archimedes-battery-sysid/</guid><description/></item><item><title>Complementary IMU Filter</title><link>https://pinetreelabs.io/posts/archimedes-imu-filter/</link><pubDate>Wed, 26 Nov 2025 00:00:00 +0000</pubDate><guid>https://pinetreelabs.io/posts/archimedes-imu-filter/</guid><description/></item><item><title>Spatial Mechanics</title><link>https://pinetreelabs.io/posts/archimedes-spatial/</link><pubDate>Mon, 20 Oct 2025 00:00:00 +0000</pubDate><guid>https://pinetreelabs.io/posts/archimedes-spatial/</guid><description/></item><item><title>Introducing Archimedes</title><link>https://pinetreelabs.io/posts/introducing-archimedes/</link><pubDate>Thu, 09 Oct 2025 03:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/introducing-archimedes/</guid><description/></item><item><title>Differentiating through differential equations</title><link>https://pinetreelabs.io/posts/adjoint-ode/</link><pubDate>Wed, 04 Sep 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/adjoint-ode/</guid><description/></item><item><title>Custom autodiff part 5: a final example</title><link>https://pinetreelabs.io/posts/custom-ad-part-5/</link><pubDate>Thu, 01 Feb 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/custom-ad-part-5/</guid><description/></item><item><title>Custom autodiff part 4: reverse mode</title><link>https://pinetreelabs.io/posts/custom-ad-part-4/</link><pubDate>Thu, 25 Jan 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/custom-ad-part-4/</guid><description/></item><item><title>Custom autodiff part 2: linear maps</title><link>https://pinetreelabs.io/posts/custom-ad-part-2/</link><pubDate>Thu, 11 Jan 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/custom-ad-part-2/</guid><description/></item><item><title>Custom autodiff part 3: forward mode</title><link>https://pinetreelabs.io/posts/custom-ad-part-3/</link><pubDate>Thu, 11 Jan 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/custom-ad-part-3/</guid><description/></item><item><title>Custom autodiff part 1: the basics</title><link>https://pinetreelabs.io/posts/custom-ad-part-1/</link><pubDate>Thu, 04 Jan 2024 05:30:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/custom-ad-part-1/</guid><description/></item><item><title>Beefing up Micrograd</title><link>https://pinetreelabs.io/posts/micrograd/</link><pubDate>Thu, 22 Jun 2023 03:00:30 -0400</pubDate><guid>https://pinetreelabs.io/posts/micrograd/</guid><description/></item></channel></rss>