spherical coordinates
(亦作spherical polar coordinates)
plural noun
1- three coordinates that define the location of a point in three-dimensional space. They are the length of its radius vector r, the angle θ between the vertical plane containing this vector and the x-axis, and the angle φ between this vector and the horizontal x-y plane球面坐标。
1.1
- Usually written (r, θ,φ.).通常写作(r, θ,φ.)。