关于代数学习一些很酷的网站

查资料：Math StackExchange (MSE) 话不多说

群论的神：Finite groups

• 特征标表：Character tables
• 线性群：Linear and projective linear groups
• 多项式的Galois群：Transitive groups of degree up to 31

# sagemath
K.<a> = NumberField(POLYNOMIAL)
G = K.galois_group()
print(G)