Help plotting parametric equations
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quentin
el 18 de Sept. de 2014
Comentada: Anjali Agrawal
el 21 de Jul. de 2020
Im trying to plot a parametric equation given by X= 3t/(1+t3) and Y= 3t2/(1+t3), on two intervals in the same window, the intervals are -30≤ t≤ -1.6 and -0.6≤ t≤ 40 I need to use the plot function to plot this My code for the first interval of t is
t= linspace (-30,-1.6);
X= ((3*t)/(1+t.^3);
Y= ((3*t.^2)/(1+t.^3));
plot(x,y)
When i try to plot this interval, it just draws up a blank graph, with no function plotted. What am i doing wrong, and also, how would i go about plotting the same function on the second interval, and have both plots visible in the same window of the plot? Any help is greatly appreciated, i apologize for any stupid errors, this is my first time using matlab
1 comentario
Melodee Haney
el 20 de Sept. de 2017
One thing that I see is that the functions are defined with capital letters 'X' and 'Y', but then a plot is attempted with lower case letters 'x' and 'y'.
Respuesta aceptada
Rick Rosson
el 18 de Sept. de 2014
Editada: Rick Rosson
el 18 de Sept. de 2014
MATLAB is case sensitive. So please try
plot(X,Y);
Also, please use ./ instead of / in the two equations.
2 comentarios
Anjali Agrawal
el 21 de Jul. de 2020
since t is an array we want element wise division, which is achieved by using a (.) before /
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