Yasuaki Honda at gmail dot com
install_github("YasuakiHonda","modular_j","main")$
asdf_load("modular_j")$
a:(1+sqrt(-35))/6;
FindInFD(a);
f(x):=(3*x+5)/(1*x+2);
f(a),ratsimp,algebraic:true;
InFD(%);
FindInFD(f(a));
FindDetIrr(a);
FindReducedQuadIrrD(-35);
map(InFD,%);
FindClassNumberD(-35);