How do I convert displacement to velocity and acceleration when given displacement

I got the displacement(d) curve and time(t) from 1-3600s, so velocity(v)=d/t, or v=d(i)/t(i)? if v=d(i)/t(i), how to write this?

Answer 1

[Dishant Arora]

v = diff(d)./diff(t)

diff gives the approximate derivate.

[Vivi]

you mean v=diff(d)/diff(t), or diff(v)=diff(d)/diff(t) ?

[Dishant Arora]

My mistake!! I have made the required changes

[Vivi]

why it show up: error using ./

[Dishant Arora]

What error does it shows?

[Vivi]

when I plot(t,v);

[Dishant Arora]

v is actually 1 element shorter than t. So, if you want to plot v against t ,you'll need to append a zero with v.

[Adi]

how to append zero to v? As i am facing the same problem

[P Velani]

how to append zero to v? As i am facing the same problem

v(end)=0