{"action":"created","issue":{"url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/527","labels_url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/527/labels{/name}","comments_url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/527/comments","events_url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/527/events","html_url":"https://github.com/firedrakeproject/firedrake/issues/527","id":81339168,"number":527,"title":"Nonlinear term causes Newton to fail even when multiplied by zero","user":{"login":"colinjcotter","id":6105842,"avatar_url":"https://avatars.githubusercontent.com/u/6105842?v=3","gravatar_id":"","url":"https://api.github.com/users/colinjcotter","html_url":"https://github.com/colinjcotter","followers_url":"https://api.github.com/users/colinjcotter/followers","following_url":"https://api.github.com/users/colinjcotter/following{/other_user}","gists_url":"https://api.github.com/users/colinjcotter/gists{/gist_id}","starred_url":"https://api.github.com/users/colinjcotter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/colinjcotter/subscriptions","organizations_url":"https://api.github.com/users/colinjcotter/orgs","repos_url":"https://api.github.com/users/colinjcotter/repos","events_url":"https://api.github.com/users/colinjcotter/events{/privacy}","received_events_url":"https://api.github.com/users/colinjcotter/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-05-27T08:08:14Z","updated_at":"2015-05-27T16:32:48Z","closed_at":null,"body":"The following code:\r\n\r\nhttps://gist.github.com/colinjcotter/149b19c763bff54d4758\r\n\r\ncauses Newton to fail. If you comment out line 29, then it converges. This is odd, because C2=0., so commenting should make no difference."},"comment":{"url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/comments/105986181","html_url":"https://github.com/firedrakeproject/firedrake/issues/527#issuecomment-105986181","issue_url":"https://api.github.com/repos/firedrakeproject/firedrake/issues/527","id":105986181,"user":{"login":"wence-","id":1126981,"avatar_url":"https://avatars.githubusercontent.com/u/1126981?v=3","gravatar_id":"","url":"https://api.github.com/users/wence-","html_url":"https://github.com/wence-","followers_url":"https://api.github.com/users/wence-/followers","following_url":"https://api.github.com/users/wence-/following{/other_user}","gists_url":"https://api.github.com/users/wence-/gists{/gist_id}","starred_url":"https://api.github.com/users/wence-/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wence-/subscriptions","organizations_url":"https://api.github.com/users/wence-/orgs","repos_url":"https://api.github.com/users/wence-/repos","events_url":"https://api.github.com/users/wence-/events{/privacy}","received_events_url":"https://api.github.com/users/wence-/received_events","type":"User","site_admin":false},"created_at":"2015-05-27T16:32:48Z","updated_at":"2015-05-27T16:32:48Z","body":"non-zero C2 won't fix, you'll just get `inf` rather than NaN in the jacobian."}}