c*******s
发帖数: 179 | 1 sorry for only typing English.
Please help me to clarify the attached figure, in which the protrusion 1
is a convex shape, and protrusion 2 and 3 are two concave shapes?
what I think is that 1 is convex with k_1>k_2>0, while 2 and 3 are concave
with k_1
if the orientation of the whole surface is consistently defined (this is his
conclusion).
which one is more conviced? | n*******l
发帖数: 2911 | 2 一根圆柱体的侧面上有三个形状相同的坑，凸性当然都应该是一样的。
concave
his
【在 c*******s 的大作中提到】
: sorry for only typing English.
: Please help me to clarify the attached figure, in which the protrusion 1
: is a convex shape, and protrusion 2 and 3 are two concave shapes?
: what I think is that 1 is convex with k_1>k_2>0, while 2 and 3 are concave
: with k_1: if the orientation of the whole surface is consistently defined (this is his
: conclusion).
: which one is more conviced?
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