image/svg+xml.................................................................................................................................................................................................................................................................
(
ÒÏ,θ,φ
)
zφÒÏ
................
ÒÏ
sin
φ
............................................................................................
ÒÏ
sin
φ
............................................................................................
ÒÏ
cos
φ
.................................................................................................................................................................................................................................................................................................................................................
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
xyθÒÏ
sin
φ
cos
θ
..........................................................................................................................................................................
ÒÏ
sin
φ
sin
θ
.............................................................................................................................................................................................................................................................................................................................................................