{"action":"created","comment":{"url":"https://api.github.com/repos/symengine/symengine/pulls/comments/55801425","id":55801425,"diff_hunk":"@@ -50,6 +50,29 @@ class Precedence : public BaseVisitor<Precedence> {\n         }\n     }\n \n+    void bvisit(const UnivariatePolynomial &x) {\n+        if (x.get_dict().size() == 1) {\n+            auto it = x.get_dict().begin();\n+            if (it->second == 0) {\n+                precedence = PrecedenceEnum::Atom;\n+            } else if (it->second == 1) {\n+                if (it->first == 0 or it->first == 1) {\n+                    precedence = PrecedenceEnum::Atom;\n+                } else {\n+                    precedence = PrecedenceEnum::Pow;\n+                }\n+            } else {\n+                if (it->first == 0 and (it->second.get_basic()->__cmp__(*Expression(0).get_basic()) >= 0)) {","path":"symengine/printer.h","position":27,"original_position":27,"commit_id":"ace88fd7cfcb0401f442c24cf0afeff624757f41","original_commit_id":"ace88fd7cfcb0401f442c24cf0afeff624757f41","user":{"login":"isuruf","id":5234427,"avatar_url":"https://avatars.githubusercontent.com/u/5234427?v=3","gravatar_id":"","url":"https://api.github.com/users/isuruf","html_url":"https://github.com/isuruf","followers_url":"https://api.github.com/users/isuruf/followers","following_url":"https://api.github.com/users/isuruf/following{/other_user}","gists_url":"https://api.github.com/users/isuruf/gists{/gist_id}","starred_url":"https://api.github.com/users/isuruf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/isuruf/subscriptions","organizations_url":"https://api.github.com/users/isuruf/orgs","repos_url":"https://api.github.com/users/isuruf/repos","events_url":"https://api.github.com/users/isuruf/events{/privacy}","received_events_url":"https://api.github.com/users/isuruf/received_events","type":"User","site_admin":false},"body":"If `it->first == 0` then this should be the precedence value of `it->second.get_basic()`. ","created_at":"2016-03-11T08:23:17Z","updated_at":"2016-03-11T08:23:17Z","html_url":"https://github.com/symengine/symengine/pull/857#discussion_r55801425","pull_request_url":"https://api.github.com/repos/symengine/symengine/pulls/857","_links":{"self":{"href":"https://api.github.com/repos/symengine/symengine/pulls/comments/55801425"},"html":{"href":"https://github.com/symengine/symengine/pull/857#discussion_r55801425"},"pull_request":{"href":"https://api.github.com/repos/symengine/symengine/pulls/857"}}},"pull_request":{"url":"https://api.github.com/repos/symengine/symengine/pulls/857","id":61887613,"html_url":"https://github.com/symengine/symengine/pull/857","diff_url":"https://github.com/symengine/symengine/pull/857.diff","patch_url":"https://github.com/symengine/symengine/pull/857.patch","issue_url":"https://api.github.com/repos/symengine/symengine/issues/857","number":857,"state":"open","locked":false,"title":"Polynomial","user":{"login":"chenchfort","id":8339862,"avatar_url":"https://avatars.githubusercontent.com/u/8339862?v=3","gravatar_id":"","url":"https://api.github.com/users/chenchfort","html_url":"https://github.com/chenchfort","followers_url":"https://api.github.com/users/chenchfort/followers","following_url":"https://api.github.com/users/chenchfort/following{/other_user}","gists_url":"https://api.github.com/users/chenchfort/gists{/gist_id}","starred_url":"https://api.github.com/users/chenchfort/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chenchfort/subscriptions","organizations_url":"https://api.github.com/users/chenchfort/orgs","repos_url":"https://api.github.com/users/chenchfort/repos","events_url":"https://api.github.com/users/chenchfort/events{/privacy}","received_events_url":"https://api.github.com/users/chenchfort/received_events","type":"User","site_admin":false},"body":"This PR implements UnivariatePolynomial and UnivariateExprPolynomial. 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