ber70
May17-09, 05:21 AM
"..spherical polar coordinates thus:
ξ = r − z = r(1 − cos θ) ,
η = r + z = r(1 + cos θ) , (10.36)
φ = φ .
The surfaces of constant ξ are a set of confocal paraboloids of revolution about
the z axis, opening in the direction of positive z, or θ = 0. The surfaces
of constant η are similar confocal paraboloids that open in the direction of...."
My question: How will we find unit vectors? And Laplacien?
ξ = r − z = r(1 − cos θ) ,
η = r + z = r(1 + cos θ) , (10.36)
φ = φ .
The surfaces of constant ξ are a set of confocal paraboloids of revolution about
the z axis, opening in the direction of positive z, or θ = 0. The surfaces
of constant η are similar confocal paraboloids that open in the direction of...."
My question: How will we find unit vectors? And Laplacien?