TraceAbove
✖
TraceAbove
is an option for Trace and related functions which specifies whether to include evaluation chains which contain the evaluation chain containing the pattern form sought.
Details

- TraceAbove->True includes the first and last expressions in all evaluation chains within which the evaluation chain containing form occurs.
- TraceAbove->All includes all expressions in these evaluation chains.
- TraceAbove->{backward,forward} allows you to specify separately which expressions to include in the backward and forward directions.
- Using TraceAbove, you can see the complete paths by which expressions matching form arose during an evaluation.
Examples
Basic Examples (1)Summary of the most common use cases
A recursive definition for finding Fibonacci numbers:

https://wolfram.com/xid/0enygdgs2-bjc302
Show only what sums of fib are encountered:

https://wolfram.com/xid/0enygdgs2-go0q0y

Show the beginning of the evaluation chain that leads to each sum of fib :

https://wolfram.com/xid/0enygdgs2-f05ioc

Show the entire evaluation chain that leads to each sum of fib:

https://wolfram.com/xid/0enygdgs2-rmx17

Wolfram Research (1991), TraceAbove, Wolfram Language function, https://reference.wolfram.com/language/ref/TraceAbove.html.
Text
Wolfram Research (1991), TraceAbove, Wolfram Language function, https://reference.wolfram.com/language/ref/TraceAbove.html.
Wolfram Research (1991), TraceAbove, Wolfram Language function, https://reference.wolfram.com/language/ref/TraceAbove.html.
CMS
Wolfram Language. 1991. "TraceAbove." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/TraceAbove.html.
Wolfram Language. 1991. "TraceAbove." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/TraceAbove.html.
APA
Wolfram Language. (1991). TraceAbove. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TraceAbove.html
Wolfram Language. (1991). TraceAbove. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TraceAbove.html
BibTeX
@misc{reference.wolfram_2025_traceabove, author="Wolfram Research", title="{TraceAbove}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/TraceAbove.html}", note=[Accessed: 02-April-2025
]}
BibLaTeX
@online{reference.wolfram_2025_traceabove, organization={Wolfram Research}, title={TraceAbove}, year={1991}, url={https://reference.wolfram.com/language/ref/TraceAbove.html}, note=[Accessed: 02-April-2025
]}