30 エッヂの名無し 2024/08/06(火) 23:49:50.440 ID:EojhtdHY6
v=(-ωy,ωx,0)rot(v)=(∂_y(0)-∂_z(ωx),∂_z(-ωy)-∂_x(0),∂_x(ωx)-∂_y(-ωy))=(0,0,ω-(-ω))=(0,0,2ω)abs(rot(v))=√(0^2+0^2+(2ω)^2)=2ωオ゛ア゛