mpoles.m: Overhaul function and use absolute tolerance for zero poles (bug #63937) * mpoles.m: Re-write documentation to explain relative tolerance used for regular poles and absolute tolerance used for zero poles. Rename second output variable to "idxp" so that it matches documentation. Add input validation for all three inputs. Create outputs based on class of input P. Rename internal variable "ordr" to "order" for clarity. Create new vector of tolerances which has relative tolerances for ordinary poles and the value of TOL for zero poles. Add BIST tests for class single inputs, for relative tolerances, for absolute tolerances, and for input validation.

root = true

[*]
charset = utf-8
end_of_line = lf
indent_size = 2
indent_style = space
insert_final_newline = true

[*.{am,mk}]
indent_size = tab
indent_style = tab