public static double perm_inscribed ( double a ) {
  return ( PI * ( a / Math . sqrt ( 3 ) ) ) ;
}

public static double perm_inscribed ( double a ) { return ( PI * ( a / Math . sqrt ( 3 ) ) ) ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (return_statement (parenthesized_expression (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))))))))))