To define the Second Fundamental Form let us form the derivatives:

so that the quantities:

define the Second Fundamental Form.

The Gaussian quantities: LN - M2 = 0 and L2 + M2 + N2 = 0. The points of the surface are then parabolic.

It is well known that the main curvatures k are obtained from the solution of the following equation:


Was this article helpful?

0 0
Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

Get My Free Ebook

Post a comment