roots_control_type structure

    struct roots_control_type{T,INT}
      f_indexing::Bool
      error::INT
      out::INT
      print_level::INT
      tol::T
      zero_coef::T
      zero_f::T
      space_critical::Bool
      deallocate_error_fatal::Bool
      prefix::NTuple{31,Cchar}

detailed documentation

control derived type as a Julia structure

components

Bool f_indexing

use C or Fortran sparse matrix indexing

INT error

error and warning diagnostics occur on stream error

INT out

general output occurs on stream out

INT print_level

the level of output required is specified by print_level

T tol

the required accuracy of the roots

T zero_coef

any coefficient smaller in absolute value than zero_coef will be regarde to be zero

T zero_f

any value of the polynomial smaller in absolute value than zero_f will be regarded as giving a root

Bool space_critical

if .space_critical true, every effort will be made to use as little space as possible. This may result in longer computation time

Bool deallocate_error_fatal

if .deallocate_error_fatal is true, any array/pointer deallocation error will terminate execution. Otherwise, computation will continue

NTuple{31,Cchar} prefix

all output lines will be prefixed by .prefix(2:LEN(TRIM(.prefix))-1) where .prefix contains the required string enclosed in quotes, e.g. “string” or ‘string’