# \$IterationLimit

gives the maximum length of evaluation chain used in trying to evaluate any expression.

# Details

• \$IterationLimit limits the number of times the Wolfram Language tries to reevaluate a particular expression.
• \$IterationLimit gives an upper limit on the length of any list that can be generated by Trace.

# Examples

open allclose all

## Basic Examples(2)

The default \$IterationLimit:

Define a function in an iterative fashion:

Evaluate by temporarily setting \$IterationLimit to a different value:

With a higher \$IterationLimit, the function can be computed:

## Scope(1)

Use ReleaseHold to keep going with the iteration:

## Generalizations & Extensions(1)

The iteration limit can be set to to allow any number of evaluation steps:

## Properties & Relations(2)

The iteration limit protects against runaway definitions:

The recursion limit protects against recursive runaway definitions:

## Possible Issues(1)

\$IterationLimit only applies to reevaluation of expressions and not looping constructs like Do and While:

Wolfram Research (1991), \$IterationLimit, Wolfram Language function, https://reference.wolfram.com/language/ref/\$IterationLimit.html.

#### Text

Wolfram Research (1991), \$IterationLimit, Wolfram Language function, https://reference.wolfram.com/language/ref/\$IterationLimit.html.

#### BibTeX

@misc{reference.wolfram_2021_\$iterationlimit, author="Wolfram Research", title="{\$IterationLimit}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/\$IterationLimit.html}", note=[Accessed: 19-September-2021 ]}

#### BibLaTeX

@online{reference.wolfram_2021_\$iterationlimit, organization={Wolfram Research}, title={\$IterationLimit}, year={1991}, url={https://reference.wolfram.com/language/ref/\$IterationLimit.html}, note=[Accessed: 19-September-2021 ]}

#### CMS

Wolfram Language. 1991. "\$IterationLimit." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/\$IterationLimit.html.

#### APA

Wolfram Language. (1991). \$IterationLimit. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/\$IterationLimit.html