# You may run this example by doing # # ode < qcd.ode | graph -T X -C # # This simulates a coupled system of ordinary differential equations that # arises in the mathematical theory of quantum chromodynamics (QCD). # # Source: Griffiths et al., J. Math. Phys. f' = fp fp' = -f*g*g g' = gp gp' = g*f*f f = 0 fp = -1 g = 1 gp = -1 print t, f step 0, 5
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