*******************************************************************
Python code:
a= Symbol('a')
b= Symbol('b')
c= Symbol('c')
x = a*b+a*c
print "x=",x
y = factor(x)
print "factor(x)=",y
y = simplify(x)
print "simplify(x)=",y
a = sympify(1.2)
print " "
x = a*b+a*c
print "x=",x
y = factor(x)
print "factor(x)=",y
y = simplify(x)
print "simplify(x)=",y
y = simplify(factor(x))
print "simplify(factor(x))=",y
*********************************************************************
Output from code using sympy 7.1 and also bleeding-edge sympy:
x= a*b + a*c
factor(x)= a*(b + c)
simplify(x)= a*(b + c)
x= 1.2*b + 1.2*c
factor(x)= 1.2*(b + c)
simplify(x)= 1.2*b + 1.2*c
simplify(factor(x))= 1.2*b + 1.2*c
*************************************************************
why does simplify prefer:
1.2*b + 1.2*c
over:
1.2*(b + c)
especially since it prefers a*(b+c) over a*b + a*c?
Larry Wigton
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