insider.si.edu8 个月
Trigonometry on the Sphere
Harry Wheeler, Isosceles Spherical Triangle National Museum of American History Geometric Models for Spherical Trigonometry by A. Harry Wheeler and his Students Kello Kern Bland and D. Parker National ...
insider.si.edu5 个月
Trigonometry on the Sphere
Harry Wheeler, Isosceles Spherical Triangle National Museum of American History Geometric Models for Spherical Trigonometry by A. Harry Wheeler and his Students Kello Kern Bland and D. Parker National ...