%%capture !pip install --upgrade sympy watermark
from sympy import * a = symbols('a') A = Point(2,a,-2) B = Point(5,-2,1) C = (1/3)*A+(2/3)*B solve(C[1],a)
[4.00000000000000]
##실행환경
%load_ext watermark %watermark --iversions
sympy: 1.7.1
