假设我有以下代码:
import sympy as sp
from sympy.physics.quantum import TensorProduct
s=sp.eye(2)
a=TensorProduct(s*x,TensorProduct(s,s)).subs(x,x**2+2*x+1)
sp.pprint(a)
代码将生成宽度有限的输出(我讨厌):
我的问题是:
答案 0 :(得分:1)
python>=3.4
,
from contextlib import redirect_stdout
import sympy as sp
from sympy.physics.quantum import TensorProduct
s = sp.eye(2)
x = sp.symbols('x')
a = TensorProduct(s*x, TensorProduct(s, s)).subs(x, x**2+2*x+1)
with open('data.txt', 'w') as f:
with redirect_stdout(f):
sp.pprint(a, wrap_line=False)