Singular Manual: farey

  | ### 5.1.35 farey `Syntax:` `farey (` bigint_expression `,` bigint_expression `)` `farey (` ideal_expression `,` bigint_expression `)` `farey (` module_expression `,` bigint_expression `)` `farey (` matrix_expression `,` bigint_expression `)` `Type:` type of the first argument `Purpose:` lift the first argument modulo the second to the rationals. The (coeffients of the) result a/b is the best approximation under the condition `Note:` The current coefficient field must be the rationals. `Example:`
        ring r=0,x,dp;
        farey(2,32003);
      ==> 2
See chinrem.

User manual for Singular version 4-0-3p3, 2016, generated by texi2html.