2019-10-16 08:33:28 -0500 received badge ● Scholar (source) 2019-10-14 07:43:30 -0500 received badge ● Student (source) 2019-10-14 07:34:13 -0500 asked a question multivariate polynomials, libsingular and polydict When defining mutlivariate polynomial in two different ways, I cannot compare them because they seem to have a different type. On the one hand I have R = PolynomialRing(QQ,'x', 3); x = R.gens() f = x[0] + x[1] + x[2] type(f)  which gives <𝚝𝚢𝚙𝚎'𝚜𝚊𝚐𝚎.𝚛𝚒𝚗𝚐𝚜.𝚙𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕.𝚖𝚞𝚕𝚝𝚒⎯𝚙𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕⎯𝚕𝚒𝚋𝚜𝚒𝚗𝚐𝚞𝚕𝚊𝚛.𝙼𝙿𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕⎯𝚕𝚒𝚋𝚜𝚒𝚗𝚐𝚞𝚕𝚊𝚛'>. On the other hand I define what is (to me) the same polynomial: SF = SymmetricFunctions(F); SF.inject_shorthands(verbose=False) g = h[1].expand(3, alphabet = R.gens()) type(g)  which gives <𝚌𝚕𝚊𝚜𝚜'𝚜𝚊𝚐𝚎.𝚛𝚒𝚗𝚐𝚜.𝚙𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕.𝚖𝚞𝚕𝚝𝚒⎯𝚙𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕⎯𝚎𝚕𝚎𝚖𝚎𝚗𝚝.𝙼𝙿𝚘𝚕𝚢𝚗𝚘𝚖𝚒𝚊𝚕⎯𝚙𝚘𝚕𝚢𝚍𝚒𝚌𝚝'> Thus when comparing f == g it gives false. How can get these two modules to talk to each other?