OpenersNotesSection(Spacer1)Details

This message is generated when the derivatives of the first argument in (RefLink[FindRoot, paclet:ref/FindRoot]) are singular at the indicated point.

This error can occur if the starting point is a minimum or a maximum of one of the functions for which roots are to be computed.

This error can also occur if the first argument is constant.

(RefLink[Off, paclet:ref/Off])[message] switches off the message; (RefLink[On, paclet:ref/On])[message] switches it on. For example: (RefLink[Off, paclet:ref/Off])[FindRoot::jsing].

OpenersPrimaryExamplesSection(Spacer1)Examples  (2)

OpenersExampleSection0(Spacer1)Basic Examples  (2)

The starting point is a minimum of the function in the first argument:

FindRoot[x^2-3==0,{x,0}]

A root is found without difficulty if a different starting value is used:

FindRoot[x^2-3==0,{x,1}]

This function does not have a root:

FindRoot[1,{x,1}]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[FindRoot, paclet:ref/FindRoot])}})}})