&input
pi=3.1415926536
g_rask=9.814
r_keha=1.
c=0.47
m_keha=15.
p_atm=100000.
t_atm=293.
mu_atm=29.
r=8314.
nt=40000
dt=0.01
relerr=1.e-7
abserr=1.e-7
iflag=1
neqn=2
y(1)=0.
y(2)=10.
/