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Dhananjay Balan 2019-03-09 14:43:32 -05:00
parent aa854a7618
commit 6af3ba8c81
1 changed files with 3 additions and 3 deletions
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blog/2019-02-23-resurracting-an-hp-7440a-plotter.markdown
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@ -1,6 +1,6 @@
---
layout: post
title: "Resurrecting an HP 7440A plotter"
title: "Resurrecting an old plotter"
date: 2019-02-23
comments: true
tags: plotter, art, python, hardware, recurse
@ -146,8 +146,8 @@ A re-reading of the manual made us realize HP sold these functionality as an
[hardware adaptor board that plugs in the
bottom](https://support.hp.com/us-en/document/bpp01354), which we don't have.
But everything in computer graphics is a line anyway right? With some [roots of
unity](https://support.hp.com/us-en/document/bpp01354) we came up with a circle
But everything in computer graphics is a line anyway right? With some [root of
unity](http://mathworld.wolfram.com/RootofUnity.html) math, we came up with a circle
drawing routine.
<video width="600" height="450" controls>