Ilya Kuzovkin did nice companion article in the form of a Python Notebook to accompany Shewchuk's classic: "The Concept of Conjugate Gradient Descent in Python

Ilya Kuzovkin did nice companion article in the form of a Python Notebook to accompany Shewchuk's classic: "The Concept of Conjugate Gradient Descent in Python" http://ikuz.eu/2015/04/15/the-concept-of-conjugate-gradient-descent-in-python/ http://ikuz.eu/2015/04/15/the-concept-of-conjugate-gradient-... And for those with more math and less patience for explanation, Robert Gower also offers: "Conjugate Gradients: The short and painful explanation with oblique projections" http://www.maths.ed.ac.uk/~s1065527/pdf/GowerR_Painful_PCG_projections http://www.maths.ed.ac.uk/~s1065527/pdf/GowerR_Painful_PCG_p...