並前往https://books.google.com.tw/books?id=gbE2EAAAQBAJ&pg=PA98&lpg=PA98&dq=hypesphere&source=bl&ots=7FfNIesC7V&sig=ACfU3U3_hNztXNA8GI3MSL8qbjrPtcbr_Q&hl=zh-TW&sa=X&ved=2ahUKEwi8zOSDmrT0AhV2QvEDHSv5Dh0Q6AF6BAgXEAM