evalLinear :: (Matrix Double, Vector Double)
           -> Vector Double
           -> Vector Double
evalLinear (m, b) x = (m #> x) + b
evalLinear :: (Matrix Double, Vector Double)
           -> Vector Double
           -> Vector Double
evalLinear (m, b) x = (m #> x) + b
evalLinear (m, b) x = (m #> x) + b