Is fzero in the standard MATLAB package or is it part of the optimization package?

Is fzero in t开发者_Go百科he standard MATLAB package or is it part of the optimization package?

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It's in both, but the supported arguments between them differ. You can compare at their respective documentation pages:

• fzero (Standard Package)
• fzero (Optimization Toolbox)

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Can't it be both? (standard, with optimization extensions?)

A quick comparison shows that the optimization extension can take a "problem" input.