Built-in Mathematica Symbol

TracePrint

TracePrint[expr]
prints all expressions used in the evaluation of expr.

TracePrint[expr, form]
includes only those expressions which match form.

TracePrint[expr, s]
includes all evaluations which use transformation rules associated with the symbol s.

TracePrint indents its output in correspondence with the nesting levels for lists generated by Trace.

TracePrint prints the forms of expressions before any of their elements are evaluated.

TracePrint yields only the forward part of the output specified by the option setting TraceAbove->All.

Print all expressions used in evaluation of an expression:

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A recursive definition for finding Fibonacci numbers:

Show all additions of positive integers:

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