tangent at specific point

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Kuatra Patil
Kuatra Patil 2019-4-21
评论： Walter Roberson 2019-4-21
i plotted parametric curve r(t)=<t , t^2 , 2>, now i have to plot tangent at P(-1 , 1, 2) but i cant figure it out. can you help me please.
t = 0:pi/50:10*pi;
st = t;
ct = t.^2;
figure(1)
plot3(st,ct,repmat(2,1,numel(t)))
hold on

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回答（1 个）

Kuatra Patil
Kuatra Patil 2019-4-21
please help me.
  3 个评论
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Kuatra Patil
Kuatra Patil 2019-4-21
bro i dont ask you about derivatives and tangent lines tutorial. i ask about how can i implement it into a code. stop posting tutorials of calculus to me.
Walter Roberson
Walter Roberson 2019-4-21
Step 1: calculate the slope of the tangent line at that point.
Step 2: create a 3D plot using that slope.
Have you completed Step 1 yet? If so then what result did you get?
Are you having difficulty with the plotting stage? If so then what have you found out about how to plot 3D lines in MATLAB ?

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