import sympy as sp

定义变量

x, y = sp.symbols('x y')

定义方程组

equation1 = sp.Eq(x**2 - y - x, 3)
equation2 = sp.Eq(x + 3*y, 2)

解方程组

solutions = sp.solve((equation1, equation2), (x, y), dict=True)

print("符号解：")
for sol in solutions:
print(sol)

from scipy.optimize import fsolve
import numpy as np

定义方程组函数

def equations(vars):
x, y = vars
return [x**2 - y - x - 3, x + 3*y - 2]

初始猜测值

initial_guess = [1, 0]

解方程组

solution = fsolve(equations, initial_guess)

print("数值解：")
print(f"x = {solution[0]}, y = {solution[1]}")

print("学号：3025")