Recent content by sarah7

Hi, can someone help in re-parameterizing the curve δ(t)=(2/3(√(L^2+9))cos(t),1/3(√(L^2+9))sin(t),L) I found dδ/dt then I got the speed to be 1/3√(L^2+9)√(1+3sin^2(t)) L is just a constant z=L I know how to re-parameterize curves to make them parameterized by arc-length when I...

thanks for your reply but how can I get rid of a,b and c

Hi, I wanted to ask about how to compute the area of a hyperboloid given in general by (x/a)^2 + (y/b)^2 - (z/c)^2 = 1 I know this is parameterised by (acos(u)cosh(v), bsin(u)cosh(v), csinh(v)) and I used the definition that A=∫√(EG-F^2) where E,G,F are from the first fundamental form...