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Motivation--- I have a glimmer of an idea that a convergent sum could be considered a self-referential number similar to a fractal. I would like to play with it for a while.

I have the following convergent sum:

NSum[((1/Pochhammer[m^2 + 1, m]) + (1/Pochhammer[m^2 + m + 1, 2 m])),
  {m, 1, Infinity}, WorkingPrecision -> 50]  

Is there a way to show the internals of about 4 or 5 steps?

share|improve this question
I had a big brain-cramp on this question, since I used trace in the title. Oops! – Fred Kline Nov 27 '12 at 19:50
up vote 5 down vote accepted

Please try //Trace option. Can be called as Trace[command] also.

Some functions also support an option called TraceInternals->True but this one does not.

Also TracePrint[command] is useful.


Actually, TraceInternals can be used here also. The trick is to apply this option to Trace itself and not to the command itself being traced! Like this

Trace[NSum[((1/Pochhammer[m^2 + 1, m]) + (1/Pochhammer[m^2 + m + 1, 2 m])), 
          {m, 1, Infinity},WorkingPrecision -> 50], 
      TraceInternal -> True
share|improve this answer
Is there a way to discover the list of functions that do support TraceInternals->True? – WalkingRandomly Nov 27 '12 at 19:13

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