static double f ( double x , double p ) {
  return x + p / Math . pow ( 2 , x * 2 / 3 ) ;
}

static double f ( double x , double p ) { return x + p / Math . pow ( 2 , x * 2 / 3 ) ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier)) (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (return_statement (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)))))))))