from IPython.display import display
import sympy as sy

sy.init_printing()  # LaTeX like pretty printing forIPython

alpha, beta, x, y = sy.symbols("alpha, beta, x, y", real=True)

f = sy.exp(-x**2 - y**2)  # sy.exp() is better than the numeric constant
val = sy.integrate(f,  (x, -1+alpha, 1+alpha), (y, -1+beta, 1+beta))
display(val)