Qfyilyi

Thank you in advance and sorry for the bad english!

I want

1.x : how to Determination of Exponentiation , Determination possible?

2.print : base=b ,exponent=n

　WrongScript.py

from sympy import *

var('x y z a b n')

x=b**n

y=3**n

z=a

# output 1.---------------------------------

print("x=",x) # x= b**n,**

print("y=",y) # y= 3**n,**

print("z=",z) # z= a,   not **

# output 2.---------------------------------

print(MyBaseOut(x),MyExponentOut(x))  # b,n

print(MyBaseOut(y),MyExponentOut(y))  # 3,n



def MyBaseOut(p):

    #   ans=?

    return ans

def MyExponentOut(q):

    #   ans=?

    return ans

2018-11-26------------------------------

FullScript.py

from sympy import *

var('b n')

def MyBaseOut(p):

    return p.as_base_exp()[0]

def MyExponentOut(q):

    return q.as_base_exp()[1]

x=b**n

y=3**n

print(MyBaseOut(x),MyExponentOut(x))

print(MyBaseOut(y),MyExponentOut(y))

# b n

# 3 n

The attribute is_Pow will tell you if it has an exponent other than 1 and the method as_base_exp() will tell you what the base and exponent are -- select element 0 for the base and element 1 for the exponent:

>>> [(i.is_Pow, i.as_base_exp()) for i in (y,1/y,y**2,y**z)]

[(False, (y, 1)), (True, (y, -1)), (True, (y, 2)), (True, (y, z))]