{"action":"created","issue":{"url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/64","repository_url":"https://api.github.com/repos/eth-cscs/nestmc-proto","labels_url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/64/labels{/name}","comments_url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/64/comments","events_url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/64/events","html_url":"https://github.com/eth-cscs/nestmc-proto/issues/64","id":187376532,"number":64,"title":"Investigate representations of ODE systems in 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2016.11.07","description":"Tasks assigned to three week sprint starting 2016.11.07.","creator":{"login":"halfflat","id":556816,"avatar_url":"https://avatars.githubusercontent.com/u/556816?v=3","gravatar_id":"","url":"https://api.github.com/users/halfflat","html_url":"https://github.com/halfflat","followers_url":"https://api.github.com/users/halfflat/followers","following_url":"https://api.github.com/users/halfflat/following{/other_user}","gists_url":"https://api.github.com/users/halfflat/gists{/gist_id}","starred_url":"https://api.github.com/users/halfflat/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/halfflat/subscriptions","organizations_url":"https://api.github.com/users/halfflat/orgs","repos_url":"https://api.github.com/users/halfflat/repos","events_url":"https://api.github.com/users/halfflat/events{/privacy}","received_events_url":"https://api.github.com/users/halfflat/received_events","type":"User","site_admin":false},"open_issues":5,"closed_issues":0,"state":"open","created_at":"2016-11-04T15:08:49Z","updated_at":"2016-11-07T09:41:23Z","due_on":"2016-11-28T00:00:00Z","closed_at":null},"comments":1,"created_at":"2016-11-04T16:18:39Z","updated_at":"2016-11-09T13:55:37Z","closed_at":null,"body":"Point estimate: 10\r\nFeature: #60 \r\n\r\nInvestigate representations as below; document conclusions on wiki or demonstrate proof of concept of choice in code.\r\n\r\nThe internal representation of an ODE system as specified by a DERIVATIVE block or KINETIC block needs to be such that the following operations are practical:\r\n* Reduce a over-specified (KINETIC) system following a supplied CONSERVE statement.\r\n* Determine system linearity.\r\n* Determine system if system is diagonal.\r\n* Possibly also: determine algebraic kernel of polynomial ODE system.\r\n\r\nThe reduction operation is necessary to support the semantics of the mechanism as described in the feature. The linearity and diagonal tests are necessary to determine the choice of solver in the mechanism instantiation.\r\n\r\nConsider the use of third party packages such as [symengine](https://github.com/symengine/symengine)."},"comment":{"url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/comments/259419972","html_url":"https://github.com/eth-cscs/nestmc-proto/issues/64#issuecomment-259419972","issue_url":"https://api.github.com/repos/eth-cscs/nestmc-proto/issues/64","id":259419972,"user":{"login":"halfflat","id":556816,"avatar_url":"https://avatars.githubusercontent.com/u/556816?v=3","gravatar_id":"","url":"https://api.github.com/users/halfflat","html_url":"https://github.com/halfflat","followers_url":"https://api.github.com/users/halfflat/followers","following_url":"https://api.github.com/users/halfflat/following{/other_user}","gists_url":"https://api.github.com/users/halfflat/gists{/gist_id}","starred_url":"https://api.github.com/users/halfflat/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/halfflat/subscriptions","organizations_url":"https://api.github.com/users/halfflat/orgs","repos_url":"https://api.github.com/users/halfflat/repos","events_url":"https://api.github.com/users/halfflat/events{/privacy}","received_events_url":"https://api.github.com/users/halfflat/received_events","type":"User","site_admin":false},"created_at":"2016-11-09T13:55:37Z","updated_at":"2016-11-09T13:55:37Z","body":"Quick options summary in: https://github.com/eth-cscs/nestmc-proto/wiki/Symbolic-algebra"}}
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