# Articles

- Using GitHub Issue comments for your website (2017-10-24)

GitHub hosted comments for static pages. - Valid Initial Pose of Any Fourbar Linkage (2017-08-23)

An elementary method for specifying a valid initial pose of any fourbar linkage. - Cross Product Considered Harmful (2017-08-19)

Perform coordinate free vector algebra in the plane without using the cross product. - The Planar Euler-Savary Equation in Vectorial Notation (2017-07-24)

The Planar Euler-Savary Equation and Applications from A Vectorial Point of View - Brahmagupta (2017-06-30)

Vectorial Proof of Brahmagupta's Formula - Ptolemy (2017-06-14)

Vectorial Proof of Ptolemy's Theorem