Video 2960 - Calculus 3 - Quadric Surfaces - Hyperboloid of two sheets 

These videos are excellent and not covered by other RU-vidrs! Thank you

thank you so much! This explanation connected a lot of dots for me.

Thank you so much I have a test on this tomorrow

have an exam on tuesday, thank you for this!!

amazing explanation thank you so much!

I need a formula for the surface area of a one-sheet hyperboloid of height h, between the planes z=1/2h and z=-1/2h. I have calculated this area using numerical integration by summing the lateral area of truncated cones, but I need a formula for the area, if it exists. Can anyone help?

This is amazing. What program are you using?

Graphical Calculator for clear image in this also