>>> sin(x).series(x,1,n=3)
sin(1) + (x - 1)*cos(1) - (x - 1)**2*sin(1)/2 + O((x - 1)**3, (x, 1))
极限的方向也是用..., 1, +oo)) # 调和级数,发散
oo
>>> summation(1/n**r, (n, 1, +oo)) # 仅当r>1时 收敛
Piecewise((zeta(r), r > 1), (Sum...>>> from sympy.integrals import laplace_transform
>>> from sympy.abc import t, s, a #导入多个符号变量
laplace_transform...>>> from sympy.integrals.transforms import inverse_laplace_transform
>>> from sympy import exp, Symbol...>>> from sympy import fourier_transform, exp
>>> from sympy.abc import x, k
>>> fourier_transform(exp