来自葛婧的问题
{{1,-0.5}{-0.5,0.38}}×{{8}{1}}
{{1,-0.5}{-0.5,0.38}}×{{8}{1}}
1回答
2020-09-2620:45
{{1,-0.5}{-0.5,0.38}}×{{8}{1}}
{{1,-0.5}{-0.5,0.38}}×{{8}{1}}
((8,-4)(-4,3.04)(1,-0.5)(-0.5,0.38))