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IPOPTData[id]

represents an instance of an IPOPTData expression created by IPOPTMinimize.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Possible Issues  
See Also
Tech Notes
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IPOPTLink`
IPOPTLink`

IPOPTData

IPOPTData[id]

represents an instance of an IPOPTData expression created by IPOPTMinimize.

Details and Options

  • To use IPOPTData, you first need to load it using Needs["IPOPTLink`"].
  • An IPOPTData expression stores information about the solution of a minimization problem solved by IPOPTMinimize.
  • The information in an IPOPTData expression can be examined by functions such as IPOPTMinValue and IPOPTArgMin.
  • When an IPOPTData expression is no longer referenced in any way within a kernel session the memory resources are automatically released.

Examples

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Basic Examples  (1)

First, load the package:

Wolfram Language code: Needs["IPOPTLink`"]

IPOPTMinimize returns an instance of IPOPTData expression:

Wolfram Language code: soln = IPOPTMinimize[Cos[x + y] * Sin[x - y], {x, y}, {0, 1}, {{-1, 1}, {-1, 1}}, {Sin[x], x * y}, {{-1, 0}, {-.25, .0}}]

Extract the minimum value and position from the IPOPTData expression:

Wolfram Language code: {IPOPTMinValue[soln], IPOPTArgMin[soln]}

Possible Issues  (1)

IPOPTData expressions are stored within a kernel session until they are deleted or are no longer referenced in any way.

Wolfram Language code: Needs["IPOPTLink`"]
Wolfram Language code: IPOPTMinimize[Cos[x], {x}, {0}]

Check all currently stored IPOPTData expressions:

Wolfram Language code: IPOPTDataExpressions[]

Manually delete an IPOPTData expression:

Wolfram Language code: IPOPTDataDelete[IPOPTData[1]]
Wolfram Language code: IPOPTDataExpressions[]

Setting $HistoryLength = 0 prevents the automatic storing of IPOPTData expressions:

Wolfram Language code: $HistoryLength = 0;
Wolfram Language code: IPOPTMinimize[Sin[x], {x}, {0}]
Wolfram Language code: IPOPTDataExpressions[]
Wolfram Research (2016), IPOPTData, Wolfram Language function, https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html.

Text

Wolfram Research (2016), IPOPTData, Wolfram Language function, https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html.

CMS

Wolfram Language. 2016. "IPOPTData." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html.

APA

Wolfram Language. (2016). IPOPTData. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html

BibTeX

@misc{reference.wolfram_2026_ipoptdata, author="Wolfram Research", title="{IPOPTData}", year="2016", howpublished="\url{https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html}", note=[Accessed: 15-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_ipoptdata, organization={Wolfram Research}, title={IPOPTData}, year={2016}, url={https://reference.wolfram.com/language/IPOPTLink/ref/IPOPTData.html}, note=[Accessed: 15-June-2026]}