import sympy
x = sympy.Symbol('x')
x
x + x
x ** 2
y
y + y
from sympy.abc import y, z
(x + y)**2
sympy.expand((x + y)**2)
sympy.init_printing()
sympy.expand((x + y)**2)
t = (x + y)**2
t
sympy.printing.latex(t)
t
t.subs(x, 3)
v = t.subs(x, 3).subs(y, sympy.pi)
v
v.evalf()
v.evalf(20)
sympy.pi.evalf(100)
from sympy import limit, sin, oo
oo
limit(1/x, x, 50)
limit(1/x, x, oo)
limit(sin(x) / x, x, 0)
from sympy import series
series(sin(x), x, 0)
series(sin(x) / x, x, 0)
from sympy import integrate
from sympy.abc import a, b
integrate(2*x, (x, 0.1, b))
integrate(2*x, x)
r = (x + 2) * (x - 3)
sympy.solve(r, x)