aubadeのブログ

 from 
 import 
*
shape( "turtle" 
)
 for 
i in 
 range 
( 15 
):
a = 1 
/( 5 
** 0.5 
)*((( 1 
+ 5 
** 0.5 
)/ 2 
)**(i+ 1 
)-(( 1 
- 5 
** 0.5 
)/ 2 
)**(i+ 1 
))
circle(a , 
 90 
)
done()