[sympy] Printing Precision

[William Purcell]

I have seen issues 1019 and 1052 on how to handle printing of sig.
digits but haven't seen a solution.  I am running the attached script
and getting things like
pH =
[ 950000.000000000]
[-400000.000000000]
[ 600000.000000000]

I preprocessing this script with another python script and inserting
the values returned from latex() into a latex document, and some of
the equations are running off the page.  How do I set the global
printing precision to make things look nicer?

Thanks,
Bill

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from sympy import *
#section{Problem 1}

var('H partH alpha omega omegax omegay omegaz alphax alphay alphaz Ixx Iyy Izz Ixy Ixz Iyz')    

def S(H,partH,alpha,omega):
    return 1.0/2*alpha.dot(partH)+alpha.dot(omega.cross(H))

def HA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,omegax,omegay,omegaz):
    H = [(Ixx*omegax-Ixy*omegay-Ixz*omegaz),\
         (Iyy*omegay-Ixy*omegax-Iyz*omegaz),\
         (Izz*omegaz-Ixz*omegax-Iyz*omegay)]
    return Matrix(H)

def partHA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,alphax,alphay,alphaz):
    pH = [(Ixx*alphax-Ixy*alphay-Ixz*alphaz),\
         (Iyy*alphay-Ixy*alphax-Iyz*alphaz),\
         (Izz*alphaz-Ixz*alphax-Iyz*alphay)]
    return Matrix(pH)


H = HA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,omegax,omegay,omegaz)
pH = partHA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,alphax,alphay,alphaz)

omega = Matrix([omegax,omegay,omegaz])
alpha = Matrix([alphax,alphay,alphaz])
S1 = S(H,pH,alpha,omega)

print 'H = '
pprint(H)
print 'pH = '
pprint(pH)
print 'S = '
pprint(S1)

omegax = -50.0
omegay = 0
omegaz = -20.0
alphax = 1500.0
alphay = -500.0
alphaz = 1000.0
Ixx = 500.0
Iyy = 800.0
Izz = 300.0
Ixz = -200.0
Ixy = 0
Iyz = 0
alpha = Matrix([alphax,alphay,alphaz])
omega = Matrix([alphax,alphay,alphaz])

H = HA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,omegax,omegay,omegaz)
pH = partHA(Ixx,Iyy,Izz,Ixy,Ixz,Iyz,alphax,alphay,alphaz)

omega = Matrix([omegax,omegay,omegaz])
alpha = Matrix([alphax,alphay,alphaz])
S = S(H,pH,alpha,omega)


print 'H = '
pprint(H)
print 'pH ='
pprint(pH)
print 'S = '
print(S)