{"action":"created","issue":{"url":"https://api.github.com/repos/convexopt/gpkit/issues/203","labels_url":"https://api.github.com/repos/convexopt/gpkit/issues/203/labels{/name}","comments_url":"https://api.github.com/repos/convexopt/gpkit/issues/203/comments","events_url":"https://api.github.com/repos/convexopt/gpkit/issues/203/events","html_url":"https://github.com/convexopt/gpkit/pull/203","id":69062577,"number":203,"title":"Posyarray improvements","user":{"login":"whoburg","id":6042395,"avatar_url":"https://avatars.githubusercontent.com/u/6042395?v=3","gravatar_id":"","url":"https://api.github.com/users/whoburg","html_url":"https://github.com/whoburg","followers_url":"https://api.github.com/users/whoburg/followers","following_url":"https://api.github.com/users/whoburg/following{/other_user}","gists_url":"https://api.github.com/users/whoburg/gists{/gist_id}","starred_url":"https://api.github.com/users/whoburg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/whoburg/subscriptions","organizations_url":"https://api.github.com/users/whoburg/orgs","repos_url":"https://api.github.com/users/whoburg/repos","events_url":"https://api.github.com/users/whoburg/events{/privacy}","received_events_url":"https://api.github.com/users/whoburg/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"bqpd","id":1482776,"avatar_url":"https://avatars.githubusercontent.com/u/1482776?v=3","gravatar_id":"","url":"https://api.github.com/users/bqpd","html_url":"https://github.com/bqpd","followers_url":"https://api.github.com/users/bqpd/followers","following_url":"https://api.github.com/users/bqpd/following{/other_user}","gists_url":"https://api.github.com/users/bqpd/gists{/gist_id}","starred_url":"https://api.github.com/users/bqpd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bqpd/subscriptions","organizations_url":"https://api.github.com/users/bqpd/orgs","repos_url":"https://api.github.com/users/bqpd/repos","events_url":"https://api.github.com/users/bqpd/events{/privacy}","received_events_url":"https://api.github.com/users/bqpd/received_events","type":"User","site_admin":false},"milestone":null,"comments":5,"created_at":"2015-04-17T04:49:21Z","updated_at":"2015-04-17T05:17:37Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/convexopt/gpkit/pulls/203","html_url":"https://github.com/convexopt/gpkit/pull/203","diff_url":"https://github.com/convexopt/gpkit/pull/203.diff","patch_url":"https://github.com/convexopt/gpkit/pull/203.patch"},"body":"* implement new convenience methods useful for finite-differencing `PosyArray`s\r\n\r\nExample usage:\r\n```python\r\nfrom gpkit import VectorVariable\r\nx = VectorVariable(10, 'x', 'm')\r\ndx = VectorVariable(10, 'dx', 'm')\r\nconstraint = (x >= x.left() + dx/2. + dx.left()/2.)\r\n```"},"comment":{"url":"https://api.github.com/repos/convexopt/gpkit/issues/comments/93894810","html_url":"https://github.com/convexopt/gpkit/pull/203#issuecomment-93894810","issue_url":"https://api.github.com/repos/convexopt/gpkit/issues/203","id":93894810,"user":{"login":"bqpd","id":1482776,"avatar_url":"https://avatars.githubusercontent.com/u/1482776?v=3","gravatar_id":"","url":"https://api.github.com/users/bqpd","html_url":"https://github.com/bqpd","followers_url":"https://api.github.com/users/bqpd/followers","following_url":"https://api.github.com/users/bqpd/following{/other_user}","gists_url":"https://api.github.com/users/bqpd/gists{/gist_id}","starred_url":"https://api.github.com/users/bqpd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bqpd/subscriptions","organizations_url":"https://api.github.com/users/bqpd/orgs","repos_url":"https://api.github.com/users/bqpd/repos","events_url":"https://api.github.com/users/bqpd/events{/privacy}","received_events_url":"https://api.github.com/users/bqpd/received_events","type":"User","site_admin":false},"created_at":"2015-04-17T05:17:37Z","updated_at":"2015-04-17T05:17:37Z","body":"Sounds good to me! The names `left` and `right` aren't super clear to me (though, no strong opinion).\r\n\r\nAlternatives:\r\n  - `leftshift`/`rightshift`\r\n  - `lshift`\r\n  - `bumpleft`"}}