Talk:Spectrahedron

Spectahedron (versus Spectrahedron)
I have seen both uses in high quality academic papers, and sometimes papers have used both spellings! Are both correct? --Tekhnofiend (talk) 16:58, 21 April 2012 (UTC)

Image
I consider the current illustration in the paper to be totally incorrect, because (with respect to given definition), the spectrahedron cannot be smooth. Am I missing something? 79.164.74.213 (talk) 16:30, 10 April 2014 (UTC)