http://calc3.askbot.com/questions/Open source question and answer forum written in Python and DjangoenCopyright Askbot, 2010-2011.Wed, 09 Jul 2014 23:43:53 -0500http://calc3.askbot.com/question/77/im-lost-on-using-the-gradient-for-tangent-planes/Can someone list a step by step procedure for utilizing the gradient of some $f(x)$ to find the tangent plane to a surface? I'm confused about the distinction between surfaces and level surfaces also. *Comment*: It would be *much* easier to provide a reasonable answer if you provided a specific problem that you're working on with a specific function $f$.SpaceManSpiffWed, 09 Jul 2014 23:43:53 -0500http://calc3.askbot.com/question/77/http://calc3.askbot.com/question/30/from-fundamental-circular-motion-how-do-we-get-the-tangent-line-when-given-t/So I know fundamental circular motion is $\vec{p} = \langle{\cos(t)},{\sin(t)}\rangle$ and we are given the equation: $\vec{p}(t) = \langle{t} + \cos(4t), {− \sin(4t)}\rangle$ and $t=\pi/3$. I want to know how from fundamental motion we can write out a parametrization equation and with that find a line tangent to that point. *Comment*: Does this refer to a particular problem?asmith14Mon, 30 Jun 2014 17:57:28 -0500http://calc3.askbot.com/question/30/