static int findIndex ( int n ) {
  float fibo = 2.078087F * ( float ) Math . log ( n ) + 1.672276F ;
  return Math . round ( fibo ) ;
}

static int findIndex ( int n ) { float fibo = 2.078087F * ( float ) Math . log ( n ) + 1.672276F ; return Math . round ( fibo ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (decimal_floating_point_literal) right: (cast_expression type: (floating_point_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) right: (decimal_floating_point_literal)))) (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))