payload: {"action":"opened","issue":{"url":"https://api.github.com/repos/PacktPublishing/Python-Deep-Learning-Second-Edition/issues/5","repository_url":"https://api.github.com/repos/PacktPublishing/Python-Deep-Learning-Second-Edition","labels_url":"https://api.github.com/repos/PacktPublishing/Python-Deep-Learning-Second-Edition/issues/5/labels{/name}","comments_url":"https://api.github.com/repos/PacktPublishing/Python-Deep-Learning-Second-Edition/issues/5/comments","events_url":"https://api.github.com/repos/PacktPublishing/Python-Deep-Learning-Second-Edition/issues/5/events","html_url":"https://github.com/PacktPublishing/Python-Deep-Learning-Second-Edition/issues/5","id":470711239,"node_id":"MDU6SXNzdWU0NzA3MTEyMzk=","number":5,"title":"chapter_02_002, line 67","user":{"login":"QQQTech","id":20376705,"node_id":"MDQ6VXNlcjIwMzc2NzA1","avatar_url":"https://avatars0.githubusercontent.com/u/20376705?v=4","gravatar_id":"","url":"https://api.github.com/users/QQQTech","html_url":"https://github.com/QQQTech","followers_url":"https://api.github.com/users/QQQTech/followers","following_url":"https://api.github.com/users/QQQTech/following{/other_user}","gists_url":"https://api.github.com/users/QQQTech/gists{/gist_id}","starred_url":"https://api.github.com/users/QQQTech/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/QQQTech/subscriptions","organizations_url":"https://api.github.com/users/QQQTech/orgs","repos_url":"https://api.github.com/users/QQQTech/repos","events_url":"https://api.github.com/users/QQQTech/events{/privacy}","received_events_url":"https://api.github.com/users/QQQTech/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2019-07-20T20:22:22Z","updated_at":"2019-07-20T20:22:22Z","closed_at":null,"author_association":"NONE","body":"delta_vec = [error * self.activation_derivative(y[-1])] \r\nI think that this line is in error because it is not supported by the formulae. If this line is changed to the following, the code runs well:\r\ndelta_vec = [error]"}}
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