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* First attempt at prototypes for matrix linear transformations * Centered shapes, each now on different pages. * Added much content+interactions to matrix content. * Edits from 8-7 user testing session * fixed indents and lint * added a sailboat shape * draw sailboat shape as polygons * Prototyping for Determinants * Cleaning up some content * Using function Geopad.animatePoint * Experimenting w/ THREE.js * Drawing a 3d arrow and scaling it with sliders. * DIAGRAM todo comments to help w/ understanding 3d (can omit) * Experimenting w/ Three.js to illustrate 3d systems of equations. * Cleaned up markdown explanations to match experimental three.js. * Replace "skew" with "shear" (not sure what happened here). * Matrix Multiplication Part 1, w/ images * Missed some skew references (use case-insensitive search next time) * Experimenting with displaying matrix multiplication as two-column scroll. * Section on formal rules/defintion for matrix mult. * ✍️ Section about Matrix Factorisation * Draft for Multiplication as Successive Transformations * A calculator-type interaction to demonstrate multiplication. * Aligned multiplying matrices horizontally. * Associative and Commutative property of matrix mult. (also added glossary terms). * Better animations for matrix-multiplying calculator * Matrix addition. * Scalar multiplication. * TODO comment for Distributive property * Slight refactoring for matrix-multiplying calculator * Outlined Step IDs for Matrix ch1 * Better segmenting for Chapter 2. * Outline Ch3 by IDs * Refactor point animation into one function. * Replace (pill) with (target) * Distributive glossary use math term. * Caption diagrams in Scroller Playground w/ corresponding images * Moved prototype/placeholder images to separate subfolder * Ch1 intro * Interactive Space Ship 🤯 🤯 🤯 * Better pills and fixed angles/points. * Angle paths * Triangle hover highlighting * Refactor transformation examples from separate chapters into Chapter 1 * Content for "matrix" and "linear-combination" sections * Content for "identity" and "basic-transformations" sections * Activity: Transform the Mathigon Logo * Content for last three sections, plus some earlier edits * Refactor repetitive code into single function. * Replace homemade function w/ Fermat.js function. * Replaced redundant g.grid Pug w/ Mixin * Cleanup * Remove merge duplicates Co-authored-by: Kevin DeLand <kevin.deland@gmail.com>
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Co-authored-by: Kevin DeLand kevin.deland@gmail.com