Vector Integral Calculus - Finding the Tangent Plane

[tullythisney]

The equation of the cone surface should be :

phi(x,y,z) = z - squareroot(x^2+y^2)=0

not

phi(x,y,z) = z - squareroot(x^2-y^2)=0 as given in this video.

[ian4402]

thanks a lot, really helped me

[sourmanofcoal]

chickichi china the chinese chicken you eat a drumstick and your head start kicking

[sphawk39]

Thank you so much. Do you have any plan to teach Partial Differential Equation? I want to watch PDE lecture. Please

[donylee]

Oh how I wish. Getting there though.

I can handle 2nd Order Differential Equations. The multiple variables in PDE are a killer to handle. Usually year 3 stuff.

When I'm good enough maybe in 6 months, you should see some of the videos on my page.

[sixbillsix]

I think you dropped a sign when you took the gradient; your dot product is not zero.

[m3axis157]

haha

[eagleeyes170]

he looks like "harold" from "Harold and Kumar"