Use MATLAB to determine how many elements are in the array s

Use MATLAB to determine how many elements are in the array sin (-pi/2):0.05: cos (0). Use MATLAB to determine the 10th element. number of elements in y: number = the 10thd element in array y: y(10) =

Solution

>> y = sin(-pi/2):0.05:cos(0);
>> length(y)

ans =

    41

>> y(10)

ans =

   -0.5500