Hi, I am new to Sympy. I am using Sympy 0.7.6 on Ubuntu, Python 2.7.6.

[Srinivasan Rajaraman]

I am trying to create a polynomial expression  through the following commands:

from sympy import *

x = symbols('x')

P1 = sympy.poly(sympy.symbols('b0:3'), x)

>>> P1

Poly(b0*x**2 + b1*x + b2, x, domain='ZZ[b0,b1,b2]')

How do I extract the expression from the polynomial object?

In the previous version Sympy 0.6.7, there used to be an attribute for the 'Poly' class, 'as_basic().'

However, this attribute does not exist for the Poly class anymore.  Could somebody help me in extracting the polynomial expression from the Poly object?

Srini

[Gaurav Dhingra]

I guess .as_expr() would do the job you intend to perform

>>> P1.as_expr()

b0*x**2 + b1*x + b2

[Srinivasan Rajaraman]

Thanks!  That worked.  I just didn't know which procedure it was to extract the expression.

[Gaurav Dhingra]

Happy to help :)