{"action":"created","issue":{"url":"https://api.github.com/repos/chebfun/chebfun/issues/1856","repository_url":"https://api.github.com/repos/chebfun/chebfun","labels_url":"https://api.github.com/repos/chebfun/chebfun/issues/1856/labels{/name}","comments_url":"https://api.github.com/repos/chebfun/chebfun/issues/1856/comments","events_url":"https://api.github.com/repos/chebfun/chebfun/issues/1856/events","html_url":"https://github.com/chebfun/chebfun/pull/1856","id":152034217,"number":1856,"title":"Speed up separableApprox/feval","user":{"login":"gradywright","id":6304453,"avatar_url":"https://avatars.githubusercontent.com/u/6304453?v=3","gravatar_id":"","url":"https://api.github.com/users/gradywright","html_url":"https://github.com/gradywright","followers_url":"https://api.github.com/users/gradywright/followers","following_url":"https://api.github.com/users/gradywright/following{/other_user}","gists_url":"https://api.github.com/users/gradywright/gists{/gist_id}","starred_url":"https://api.github.com/users/gradywright/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gradywright/subscriptions","organizations_url":"https://api.github.com/users/gradywright/orgs","repos_url":"https://api.github.com/users/gradywright/repos","events_url":"https://api.github.com/users/gradywright/events{/privacy}","received_events_url":"https://api.github.com/users/gradywright/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-04-30T14:36:35Z","updated_at":"2016-05-01T21:22:20Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/chebfun/chebfun/pulls/1856","html_url":"https://github.com/chebfun/chebfun/pull/1856","diff_url":"https://github.com/chebfun/chebfun/pull/1856.diff","patch_url":"https://github.com/chebfun/chebfun/pull/1856.patch"},"body":"This pull request improves the speed of `separableApprox/feval` in the case that the input arguments are matrices.  Here's a demonstration of the speed up for `spherefun` objects:\r\n```\r\n>> g = spherefun(@(lam,th) cos(10*cos(lam-0.2).*sin(th)+2*cos(th).^2));\r\n>> ll = rand(100,100);  tt = rand(100,100);\r\n>> tic, h = g(ll,tt); toc  % On development\r\nElapsed time is 4.683748 seconds.\r\n>> tic, h = g(ll,tt); toc  % On branch speedup-separableApprox-feval\r\nElapsed time is 0.148328 seconds.\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/chebfun/chebfun/issues/comments/216073560","html_url":"https://github.com/chebfun/chebfun/pull/1856#issuecomment-216073560","issue_url":"https://api.github.com/repos/chebfun/chebfun/issues/1856","id":216073560,"user":{"login":"ajt60gaibb","id":1814063,"avatar_url":"https://avatars.githubusercontent.com/u/1814063?v=3","gravatar_id":"","url":"https://api.github.com/users/ajt60gaibb","html_url":"https://github.com/ajt60gaibb","followers_url":"https://api.github.com/users/ajt60gaibb/followers","following_url":"https://api.github.com/users/ajt60gaibb/following{/other_user}","gists_url":"https://api.github.com/users/ajt60gaibb/gists{/gist_id}","starred_url":"https://api.github.com/users/ajt60gaibb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ajt60gaibb/subscriptions","organizations_url":"https://api.github.com/users/ajt60gaibb/orgs","repos_url":"https://api.github.com/users/ajt60gaibb/repos","events_url":"https://api.github.com/users/ajt60gaibb/events{/privacy}","received_events_url":"https://api.github.com/users/ajt60gaibb/received_events","type":"User","site_admin":false},"created_at":"2016-05-01T21:22:20Z","updated_at":"2016-05-01T21:22:20Z","body":"OK."}}