Question about equation (8)" in paper

cjekel / piecewise_linear_fit_py

fit piecewise linear data for a specified number of line segments

MIT License

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Closed longyn closed 4 years ago

longyn commented 4 years ago

Hi there, The paper says, " the solution is expressed as",

It equals to:

Why use the equation 8?

longyn commented 4 years ago

I got it, A must be square matrix.