Get acceleration from displacement

Hello, I have a displacement function (attached) that I need to convert into acceleration function. Someone can help me?

Answer 1

[madhan ravi]

    y=displacement

    t=time 

    velocity=diff(y)./diff(t)

    acceleration=diff(y,2)./diff(t,2)

[madhan ravi]

acceleration is double differentiation of displacement with respect to time , learn more about diff()