{"action":"created","issue":{"url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2","repository_url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises","labels_url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2/comments","events_url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2/events","html_url":"https://github.com/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2","id":159751578,"number":2,"title":"About Eq. (1.26) in section \"Implicit methods\"","user":{"login":"astroboylrx","id":3999966,"avatar_url":"https://avatars.githubusercontent.com/u/3999966?v=3","gravatar_id":"","url":"https://api.github.com/users/astroboylrx","html_url":"https://github.com/astroboylrx","followers_url":"https://api.github.com/users/astroboylrx/followers","following_url":"https://api.github.com/users/astroboylrx/following{/other_user}","gists_url":"https://api.github.com/users/astroboylrx/gists{/gist_id}","starred_url":"https://api.github.com/users/astroboylrx/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/astroboylrx/subscriptions","organizations_url":"https://api.github.com/users/astroboylrx/orgs","repos_url":"https://api.github.com/users/astroboylrx/repos","events_url":"https://api.github.com/users/astroboylrx/events{/privacy}","received_events_url":"https://api.github.com/users/astroboylrx/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-06-11T02:36:24Z","updated_at":"2016-06-11T02:44:18Z","closed_at":null,"body":"I believe that Eq. (1.26) at [here](https://github.com/Open-Astrophysics-Bookshelf/numerical_exercises/blob/master/intro/intro.tex#L481) does not want expansions on time. I think the superscript of \"t\" on the right hand side should be changed from \"n\" to \"n+1\".\r\nPS: I think the subscript of the Jacobin matrix, \"0\", may be a little confusing since the matrix uses digits (1-n) as the subscriptions of its elements. Maybe a few more explanations will make it clearer. Thanks."},"comment":{"url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/comments/225332607","html_url":"https://github.com/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2#issuecomment-225332607","issue_url":"https://api.github.com/repos/Open-Astrophysics-Bookshelf/numerical_exercises/issues/2","id":225332607,"user":{"login":"zingale","id":7817509,"avatar_url":"https://avatars.githubusercontent.com/u/7817509?v=3","gravatar_id":"","url":"https://api.github.com/users/zingale","html_url":"https://github.com/zingale","followers_url":"https://api.github.com/users/zingale/followers","following_url":"https://api.github.com/users/zingale/following{/other_user}","gists_url":"https://api.github.com/users/zingale/gists{/gist_id}","starred_url":"https://api.github.com/users/zingale/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zingale/subscriptions","organizations_url":"https://api.github.com/users/zingale/orgs","repos_url":"https://api.github.com/users/zingale/repos","events_url":"https://api.github.com/users/zingale/events{/privacy}","received_events_url":"https://api.github.com/users/zingale/received_events","type":"User","site_admin":false},"created_at":"2016-06-11T02:44:18Z","updated_at":"2016-06-11T02:44:18Z","body":"you are right -- that's a typo (the n instead of n+1).  The proper superscript appears in 1.28.\r\n\r\nI'll think about the notation issue as well."}}
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