from pylab import *
def Philipp(t):
    S = 85.0
    K = 5.0
    ip = 0.5*S*t**(-0.5)+K
    return ip
t = arange(0.0, 60.0, 0.5)
plot(t, Philipp(t))
ytext = ylabel('Infiltrationsmenge (mm)')
xtext = xlabel('Zeit (Min.)')
show()