Can not plot, please help

x = 0:1:10
y = (15*x)/(4*x.^2-3*x+4)
plot(x,y)

why can't i plot this? please help me.

Answer 1

[Sean de Wolski]

It is plotting, it's just only plotting a single point. The matrix division of a 1x11 vector by a 1x11 vector is a scalar.

ones(1,10)/ones(1,10)

You probably meant for element-by-element division

ones(1,10)./ones(1,10)

And thus your defintion of y:

y = (15*x)./(4*x.^2-3*x+4)

look at

doc vectorize

to avoid these issues in the future.

[Emre]

Thank you very much. it worked.