File: qcd.ode

package info (click to toggle)
plotutils 2.6-15
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 14,040 kB
  • sloc: ansic: 68,670; sh: 20,086; cpp: 12,382; yacc: 2,588; makefile: 838; lex: 137
file content (21 lines) | stat: -rw-r--r-- 357 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
# 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