from IPython.display import display, Math

for i in range(0,5):
    for j in range(-3,0):
        if i!=0 and j!=0:
            display(Math('%g^{%g} = %g' %(i,j,i**j)))

$\displaystyle 1^{-3} = 1$

$\displaystyle 1^{-2} = 1$

$\displaystyle 1^{-1} = 1$

$\displaystyle 2^{-3} = 0.125$

$\displaystyle 2^{-2} = 0.25$

$\displaystyle 2^{-1} = 0.5$

$\displaystyle 3^{-3} = 0.037037$

$\displaystyle 3^{-2} = 0.111111$

$\displaystyle 3^{-1} = 0.333333$

$\displaystyle 4^{-3} = 0.015625$

$\displaystyle 4^{-2} = 0.0625$

$\displaystyle 4^{-1} = 0.25$

for i in range(0,10):
    for j in range(0,4):
        if i>0 and j>1:
            display(Math('%g^\\frac{1}{%g} = %g' %(i,j,i**(1/j))))

$\displaystyle 1^\frac{1}{2} = 1$

$\displaystyle 1^\frac{1}{3} = 1$

$\displaystyle 2^\frac{1}{2} = 1.41421$

$\displaystyle 2^\frac{1}{3} = 1.25992$

$\displaystyle 3^\frac{1}{2} = 1.73205$

$\displaystyle 3^\frac{1}{3} = 1.44225$

$\displaystyle 4^\frac{1}{2} = 2$

$\displaystyle 4^\frac{1}{3} = 1.5874$

$\displaystyle 5^\frac{1}{2} = 2.23607$

$\displaystyle 5^\frac{1}{3} = 1.70998$

$\displaystyle 6^\frac{1}{2} = 2.44949$

$\displaystyle 6^\frac{1}{3} = 1.81712$

$\displaystyle 7^\frac{1}{2} = 2.64575$

$\displaystyle 7^\frac{1}{3} = 1.91293$

$\displaystyle 8^\frac{1}{2} = 2.82843$

$\displaystyle 8^\frac{1}{3} = 2$

$\displaystyle 9^\frac{1}{2} = 3$

$\displaystyle 9^\frac{1}{3} = 2.08008$

def powers(x,y):
    display(Math('%g^{%g} = %g' %(x,y,x**y)))

def powersOfFractions(x,y):
    display(Math('%g^\\frac{1}{%g} = %g' %(x,y,x**(1/y))))

def calc():
    x = int (input('Input X: '))
    y = int (input('Input Y: '))
    
    display(Math('\\text{Press "1" to compute }%g^{%g}\\text{ or press "2" to compute }%g^\\frac{1}{%g}' %(x,y,x,y)))
    switch = input(' ')
    
    if switch=='1':
        powers(x,y)
    elif switch=='2':
        powersOfFractions(x,y)
    else:
        print('Invalid selection!')

calc()

Input X: 5
Input Y: 3

$\displaystyle \text{Press "1" to compute }5^{3}\text{ or press "2" to compute }5^\frac{1}{3}$

 1

$\displaystyle 5^{3} = 125$

calc()

Input X: 5
Input Y: 3

$\displaystyle \text{Press "1" to compute }5^{3}\text{ or press "2" to compute }5^\frac{1}{3}$

 2

$\displaystyle 5^\frac{1}{3} = 1.70998$