{"action":"opened","issue":{"url":"https://api.github.com/repos/fsprojects/ExcelFinancialFunctions/issues/4","labels_url":"https://api.github.com/repos/fsprojects/ExcelFinancialFunctions/issues/4/labels{/name}","comments_url":"https://api.github.com/repos/fsprojects/ExcelFinancialFunctions/issues/4/comments","events_url":"https://api.github.com/repos/fsprojects/ExcelFinancialFunctions/issues/4/events","html_url":"https://github.com/fsprojects/ExcelFinancialFunctions/issues/4","id":54344445,"number":4,"title":"Rate function throws an exception","user":{"login":"cms","id":130128,"avatar_url":"https://avatars.githubusercontent.com/u/130128?v=3","gravatar_id":"","url":"https://api.github.com/users/cms","html_url":"https://github.com/cms","followers_url":"https://api.github.com/users/cms/followers","following_url":"https://api.github.com/users/cms/following{/other_user}","gists_url":"https://api.github.com/users/cms/gists{/gist_id}","starred_url":"https://api.github.com/users/cms/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cms/subscriptions","organizations_url":"https://api.github.com/users/cms/orgs","repos_url":"https://api.github.com/users/cms/repos","events_url":"https://api.github.com/users/cms/events{/privacy}","received_events_url":"https://api.github.com/users/cms/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-01-14T16:41:26Z","updated_at":"2015-01-14T16:41:26Z","closed_at":null,"body":"Hello,\r\n\r\nThe following Rate function call results in an exception, while the behavior in Excel is to return the value *0.00043296*:\r\n\r\n    Financial.Rate(260,-60, 13500, 1400, 0);\r\n\r\n**Exception Message:** FindBounds: one of the values (-1.000000, 3.211696) cannot be used to evaluate the objective function\r\n\r\n**Stack trace:**\r\n\r\n    at Excel.FinancialFunctions.Common.rfindBounds@59(FSharpFunc`2 f, Double minBound, Double maxBound, Double precision, Double low, Double up, Int32 tries)\r\n    at Excel.FinancialFunctions.Common.findBounds(FSharpFunc`2 f, Double guess, Double minBound, Double maxBound, Double precision)\r\n    at Excel.FinancialFunctions.Common.findRoot(FSharpFunc`2 f, Double guess)\r\n\r\nI'm using the version **2.2.0** from NuGet.\r\n\r\n\r\nThanks,\r\n\r\n-cms\r\n\r\n"}}