in matlab

Calculate ex for x=2 using from 1 to 20 significant figures for the evaluation of x (i.e. x=1, x=1.4,x=1.41,x=1.4142135623730950488) Compute the roundoff error for each value of x when compared to the true value of e2 and present a table with the results including the value used for x, the calculation of ex and the roundoff error. Report the tool(s) you used to calculate these values and briefly state any observations