# lb_opt_x¶

Class attribute.

MPC.lb_opt_x

Query and modify the lower bounds of all optimization variables opt_x. This is a more advanced method of setting bounds on optimization variables of the MPC/MHE problem. Users with less experience are advised to use bounds instead.

The attribute returns a nested structure that can be indexed using powerindexing. Please refer to opt_x for more details.

Note

The attribute automatically considers the scaling variables when setting the bounds. See scaling for more details.

Note

Modifications must be done after calling prepare_nlp() or setup() respectively.

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