X-Git-Url: http://gitweb.michael.orlitzky.com/?p=numerical-analysis.git;a=blobdiff_plain;f=src%2FIntegration%2FGaussian.hs;h=6eb46f6683a9c58d0105da1f1519d732c53bdd64;hp=8fcca4f710d4fd918e061f475196ad3c9a2af1e5;hb=46f18f6dd356db75b77bd95a15260c7c1a817bff;hpb=6f237bfcd5890513cd390000c1ac8cdbdbaffb8c diff --git a/src/Integration/Gaussian.hs b/src/Integration/Gaussian.hs index 8fcca4f..6eb46f6 100644 --- a/src/Integration/Gaussian.hs +++ b/src/Integration/Gaussian.hs @@ -24,13 +24,13 @@ import Linear.Matrix ( Col, Col10, Mat(..), - colzipwith, construct, fromList, identity_matrix, - matmap, - row', - transpose ) + map2, + row, + transpose, + zipwith2 ) import Linear.QR ( eigenvectors_symmetric ) import Normed ( Normed(..) ) @@ -119,11 +119,11 @@ nodes_and_weights iterations = nodes = shifted_nodes + ones -- unshift the nodes -- Get the first component of each column. - first_components = row' vecs 0 + first_components = row vecs 0 -- Square it and multiply by 2; see the Golub-Welsch paper for -- this magic. - weights_row = matmap (\x -> (fromInteger 2)*x^2) first_components + weights_row = map2 (\x -> (fromInteger 2)*x^2) first_components weights = transpose $ weights_row @@ -212,5 +212,5 @@ gaussian' f nodes weights = -- want. norm_p (1::Int) weighted_values where - function_values = matmap f nodes - weighted_values = colzipwith (*) weights function_values + function_values = map2 f nodes + weighted_values = zipwith2 (*) weights function_values