Dear students,

For running courseware/code/projhq, try

quark mass = 1.3
coeff. of Coulomb potential = 0.4
string tension = 0.1764
ang. momentum = 0

and then

rmin = 0.1
r0 = 5
rmax = 15
starting energy = 2.6
energy step = 0.005

You will see the coulomb plus linear potential drawn and a solution to the radial Schrodinger equation displayed.

For a higher energy solution, try

rmin = 0.1
r0 = 5.0
rmax = 15.0
starting energy = 3.05
energy step = 0.005