AngMom:

  Angular momentum of 2-particles in their rest frame.

  4 initial conditions.

  Angular momentum xl(), xl(4) magnitude.
  XMM total mass (xmu in Landau-Lifshitz).
  Xmu reduced mass (m in Landau-Lifshitz).

Set 1:

    Mass, initial coordinates and velocities:
   0.6510   0.5850  -0.2380  -0.7550  -0.8280  -0.8650  -0.7260
   0.9310  -0.0960   0.0000   0.3570  -0.2090   0.1070  -0.6600

    XMM,xmu:               1.582000     0.383111
    r12:      0.681000    -0.238000    -1.112000     1.325500
    v12:     -0.619000    -0.972000    -0.066000     1.154253
    vcm:     -0.463721    -0.292982    -0.687159     0.879241
    rcm:      0.184235    -0.097938    -0.100593     0.231632   at time zero.
    xl,E:    -0.408073     0.280925    -0.310034     0.584434    -0.202038
    Second Calculation (control check):
    xl,E:    -0.408073     0.280925    -0.310034     0.584434    -0.202038

Set 2:

    Mass, initial coordinates and velocities:
   1.5100   0.4600  -0.3590  -0.2340  -0.9180  -0.9410  -0.3230
   0.1260  -0.0660  -0.0900  -0.8090   0.7890   0.7880   0.6200

    XMM,xmu:               1.636000     0.116296
    r12:      0.526000    -0.269000     0.575000     0.824416
    v12:     -1.707000    -1.729000    -0.943000     2.606250
    vcm:     -0.786532    -0.807837    -0.250373     1.154955
    rcm:      0.419489    -0.338282    -0.278285     0.606505   at time zero.
    xl,E:     0.145119    -0.056462    -0.159167     0.222669     0.164191
    Second Calculation (control check):
    xl,E:     0.145119    -0.056462    -0.159167     0.222669     0.164191

Set 3:

    Mass, initial coordinates and velocities:
   1.3280  -0.1250   0.8980   0.1940  -0.4520   0.1720   0.1250
   1.9990  -0.4490  -0.0850  -0.4540  -0.9760  -0.9900  -0.9680

    XMM,xmu:               3.327000     0.797918
    r12:      0.324000     0.983000     0.648000     1.221134
    v12:      0.524000     1.162000     1.093000     1.679127
    vcm:     -0.766841    -0.526178    -0.531720     1.071277
    rcm:     -0.319673     0.307373    -0.195345     0.484591   at time zero.
    xl,E:     0.256485    -0.011634    -0.110595     0.279555    -1.049087
    Second Calculation (control check):
    xl,E:     0.256485    -0.011634    -0.110595     0.279555    -1.049087

Set 4:

    Mass, initial coordinates and velocities:
   0.1800   0.2040  -0.9680  -0.7530  -0.8110  -0.6320   0.7840
   1.5600  -0.8890  -0.9790   0.8540  -0.3230  -0.7740  -0.5330

    XMM,xmu:               1.740000     0.161379
    r12:      1.093000     0.011000    -1.607000     1.943507
    v12:     -0.488000     0.142000     1.317000     1.411665
    vcm:     -0.373483    -0.759310    -0.396759     0.934590
    rcm:     -0.775931    -0.977862     0.687759     1.425235   at time zero.
    xl,E:     0.039164    -0.105746     0.025913     0.115705     0.016317
    Second Calculation (control check):
    xl,E:     0.039164    -0.105746     0.025913     0.115705     0.016317