FindRoot::jsing

Details

  • This message is generated when the derivatives of the first argument in 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.
  • When doing finite element analysis on a Mac computer with Apple silicon hardware, a missing "PARDISO" solver can be the cause of this message. Running the Wolfram System under Rosetta can resolve the issue.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[FindRoot::jsing].

Examples

Basic Examples  (2)

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

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

This function does not have a root: